The Secrets of Pain Relief: Natural Remedies That Will End Your Suffering

Introduction

Pain, in one form or another, has always been a part of human life. Throughout history, mankind has sought solutions to help alleviate all kinds of pain, but we have only achieved partial or temporary relief. In the twenty-first century, experts still consider chronic pain one of the most concerning health problems affecting the population. Many of those who suffer musculoskeletal discomfort are not satisfied with their treatment. Seeing as over half of the population will suffer from arthritis or another rheumatic disease at some point in their life, this is not a very hopeful future.

Chronic pain can affect anyone. Throughout history, we have seen records from kings to painters, musicians to inventors, who have suffered from severe pain. Charles V, Holy Roman Emperor, suffered from severe attacks of gout that left him with a great physical disability; Christopher Columbus who lived for years in intense pain, suffering from strange symptoms, died at age fifty-four; and Sergei Rachmaninov, the last of the Romantic composers, though he suffered such severe pain that he could no longer compose music, discovered that performing on stage helped relieve the discomfort. Freud had migraines, Frida Kahlo was diagnosed with chronic pain, and Renoir had arthritis.

Many of those suffering from chronic pain feel misunderstood when they try to describe their symptoms, whether to their family, friends, or doctors. Often, their pain will be underestimated and left untreated. As a subjective sensation, pain is difficult to demonstrate. Patients are often passed from one specialist to another, only to be prescribed NSAIDS (nonsteroidal anti-inflammatories) to alleviate their chronic pain.

According to studies, it takes an average of two years for a patient to get proper treatment. Suffering from chronic pain for more than six months multiplies the risk of psychosocial impairment and disability, and causes a significant decrease in quality of life.

A study conducted in Spain on a population of five thousand people showed that 29 percent of the study’s participants had pain the day before the study, and 43 percent reported having pain the week before the study. The incidence of pain increased with age, reaching 42 percent in people over sixty-five years old claiming that they suffered from pain daily. Professor Paul Langley of the University of Minnesota conducted the study Pain in Europe in 2003, which included more than fifty thousand people from various European countries. The study showed that 19 percent of participants suffered from chronic pain. This represents about 75 million people over the age of forty. In Spain, the percentage of people suffering from chronic pain was only recorded to be 12 percent; could this be because of the difference in lifestyle, food, and recreational activity?

In the United States, about 30 percent of the population suffers from back pain. About 70 million Americans develop chronic pain annually, with more than 50 million suffering partial or total debilitation ranging from days to months, or in some cases, for life.

In 1900, the average life expectancy was between 31 and 50 years, and as of 2005, it was between 65 and 80. It is estimated that the population over the age of 64 will make up 37 percent of the population by 2030, and 60 percent by 2049. This demographic change is being called a demographic tsunami. The prevalence of diseases related to aging will increase dramatically in the United States and Europe. Pain will need to be treated in order to live a long life.

Pain has a great socioeconomic impact and is among one of the ten diseases that most impact healthcare budgets, as stated by Professor Ceri Philips of the School of Health Sciences at Swansea University (UK). Pain not only affects the patient (through the cost of their treatment, loss of leisure time, deterioration in the quality of life, etc.), but the health system (through examinations, therapies, consultations, etc.), and society in general (lost productivity, stress, etc.).

Back pain is one of the leading causes of absenteeism. In the UK, back pain is responsible for 12.3 billion euros or 22 percent of the total cost of health care.

What can be done to combat this health problem? Most specialists recommend physical exercise (adapted to each patient and supervised by the specialist in rehabilitation) as a tool to help prevent disability related to pain or to restore function.

Research in this area is showing progress. Americans David Julius and Linda Watkins and Israeli Baruch Minke have won the 2012 Prince of Asturias Prize of Scientific and Technical Research for their innovative studies on pain. The jury noted that the winners have made discoveries that together allow a deeper understanding of cellular and molecular bases of the different sensations, especially pain. The World Association for the Study of Pain and associations on state and local levels provide places where patients can discuss their doubts and concerns. It is also important to mention the proliferation of pain clinics which work toward the aim of finding solutions to different types of pain.

I am honored to run the Teknon Pain Clinic, a multidisciplinary center whose objective is the diagnosis, management, and treatment of chronic pain (from cancer- and non-cancer-related conditions). The Teknon Pain Clinic provides pharmacological or interventional procedures for chronic pain and for rehabilitation. Teams provide a comprehensive evaluation of the patient and create individualized therapy tailored to each patient to help them live their lives without pain.

Through our partnership with the Millennium Pain Center of Chicago, we have become one of the few private teams that have both a basic and clinical research department. We are up to date on all the latest techniques and procedures, scientific research, and cutting-edge treatments for chronic pain.

I have over thirty years of experience in the field of pain research and treatment, and with the collaboration of Cedor Enrich, we have created this book. This project is made possible by Grupo Océano, and with the help of the other experienced members of my team, Drs. Carlos Nebrada, Antonio Ojeda, and María Teresa Vincente, and with the collaboration of journalist Carlota Máñez. We have worked for months to make this abstract and complex subject accessible to readers, through a practical and enjoyable book. Anyone suffering from pain or looking to help a loved one can find answers and guidance in this manual.

To all my team and Carlota Máñez, thank you very much.

Dr. Luis Aliaga

Director of Anesthesiology Services

Clinical Coordinator, Teknon Pain Clinic

(www.teknon.es/clinicadolor/equipo.htm)

Teknon Medical Center, Barcelona

(Associated Millennium Pain Center of Chicago)

([email protected])

Book completed in February 2012

in Pereira Parda (Galdo, Lugo)

A Little Theory

Dr. Antonio Ojeda, Dr. Carlos Nebreda, Dr. Luis Aliaga

Mankind has always experienced pain. All of us at some point in our lives has endured a painful experience.

But what is pain? There are countless definitions. The Spanish Royal Academy describes it as a disturbing and distressing sensation of a body part by internal or external cause. This definition refers both to the physical and emotional aspects of pain. The World Association for the Study of Pain defines it as an unpleasant sensory and emotional experience associated with actual or potential tissue damage. To better understand this definition, it is necessary to understand the two components that define pain. The first, sensory, refers to the painful feeling; and the second component which is associated with pain suffering.

There are several classifications of the types of pain. The most common way to classify pain is to differentiate between acute pain and chronic pain. The distinction between these two types of pain goes beyond the length of time the pain is experienced, as discussed below.

Acute pain is crucial to our survival because it acts as a biological alarm system that warns us that something is causing harm to our body. It occurs when a harmful stimulus triggers a series of responses to defend our body. These responses include quick reflexes, such as the pulling away of the affected limb, or muscle contraction; and the production of hormones like epinephrine which prepares us to deal with a threat. Acute pain disappears after the root cause is eliminated and should last less than six months.

According to the IASP, chronic pain is pain that lasts for more than six months, while Dr. John J. Bonica defines chronic pain as pain that persists a month after the injury. Acute pain is a symptom of a disease, while chronic pain is the disease itself.

In addition, pain can be classified according to the physiopathological mechanism that produces nociceptive and neuropathic pain. This classification is particularly useful because we know that the treatment of each of these types of pain varies significantly. Nociceptive pain is produced when a stimulus causes damage or injury to internal tissues (somatic pain) or external tissues (visceral pain). It is the result of the activation of a specific system, starting with peripheral receptors and ending with the interpretation of the signal in the brain. Neuropathic pain is when the pain caused by injury or disease is not harmful, but the stimuli feel it as though it is harmful. That is, the body interprets abnormal signals, creating pain specific to certain stimuli.

When pain becomes chronic, when it loses its protective purpose, it becomes a problem.

HOW DO WE FEEL PAIN?

Acute pain occurs with the activation of the small nerve endings specifically developed to feel the noxious stimuli. These endings are nociceptors, located along the whole body, both in the skin and deeper organs (visceral and musculoskeletal nociceptors). They can be triggered by mechanical, thermal, or chemical stimuli. Stimuli captured by nociceptors travel through the nerve body to the nerve cell fibers (neuronal soma) located in an anatomical structure (dorsal root ganglion) that is close to the spine. From here they travel through the spinal cord (dorsal horn), where the neurons communicate through chemicals called neurotransmitters. In the spinal cord, these nerve fibers are arranged in packets called bundles (spinothalamic), and target structures in the brain. Among these is the thalamus, which acts as the gateway of information to the cerebral cortex. It can determine whether a stimulus is painful, as well as the pain intensity, and thus the suffering caused by the painful stimulus is perceived. Then the signals travel to the cerebral cortex, which analyzes all the painful information.

It is necessary to point out that the downward path of pain is to regulate the function of the upward transmission of nociceptive impulses (from the periphery to the brain), constituting a sort of filter for different stimuli. The most important transmitters are endogenous opioids, glutamate (an amino acid that acts as a powerful excitatory neurotransmitter), and inhibitory circuits, especially those related to GABA (gamma-Aminobutyric acid), which is the principal cerebral inhibitory neurotransmitter, and glycine (an amino acid that acts as potent inhibitory neurotransmitter).

HOW ARE NOCICEPTORS ACTIVATED?

The presence of tissue injury is necessary for nociceptor activation to produce an inflammatory response with the consequent production of a series of chemical reactions. Serotonin, histamine, prostaglandins and substance P, and neurotransmitters such as acetylcholine, norepinephrine, epinephrine can all cause this reaction. Physical and chemical changes such as changes in pH, temperature changes, or changes in the osmolarity of the medium can also activate nociceptors.

Another feature of these substances is that they are capable of producing a phenomenon known as sensitization which is to change the structure of the receptor to be more like these molecules. They also activate phospholipase, an enzyme capable of transforming lipids of cell membranes in arachidonic acid, which is the precursor of a group of chemical mediators known as prostaglandins and thromboxane, many of which also act as nociceptor sensitizers. Cyclooxygenase is the enzyme necessary for this reaction. It is important to know because it is it is targeted by analgesics such as aspirin and ibuprofen.

It is also important to know that the pain threshold is the minimum stimulus it takes to perceive the sensation. For example, most people begin to feel a painful stimulus when the thermal temperature reaches 120 degrees Fahrenheit. Similarly, a mechanical stimulus will begin to feel painful when a certain degree of pressure is applied. Pain tolerance is defined as the maximum level of pain a person is able to endure. This level varies dramatically from person to person and is influenced by emotional factors such as previous experience, personality, and sociocultural influences.

WHERE IS PAIN LOCATED?

The location of pain depends on the type of pain. In the case of surface peripheral nociceptive pain, which is encoded by nociceptors of the skin, mucous membranes and subcutaneous tissue, the pain is usually localized, throbbing or pulsing if the stimulation is brief, or burning if the stimulation is more prolonged. The deep nociceptive pain comes from the excitement of the osteoarticular receptors and is usually more difficult to locate and is characterized by a duller, diffused pain. Alternatively, visceral nociceptive pain, which is what occurs when there is damage to an internal organ, is often vague, fuzzy, difficult to locate, and accompanied by other symptoms such as sweating, nausea or changes in heart rate, and can cause pain in other regions beside the affected one.

This type of pain is present in a different region than the injured area (e.g., shoulder pain during a heart attack). It is believed to be caused when the nerve endings in the affected region