Pain relieving creams, also known as topical analgesics, are similar to other forms of pain relievers except that they are applied to the skin. Many different types are available over the counter for a variety of purposes, but relief from joint pain associated with arthritis is the most common use of these creams.
For pain relieving creams to work, they must contain a high concentration of medication that is capable of being absorbed into the skin and tissue. Topical pain relievers can be very effective at relieving site-specific pain and are preferred by many people to oral medications for such specific pain relief. Besides relief from joint pain, they may also be used to relieve pain from insect bites or stings, sunburn, certain types of headaches, and similar types of site-specific, body surface pain.
Topical non-steroidal anti-inflammatory drugs (NSAIDs) are used most often for joint pain relief. Capsaicin and lidocaine are two drugs commonly found in pain relieving creams. Capsaicin, which found in hot peppers and is also a primary ingredient in pepper spray, is a medication that is capable of blocking the sensation of pain. It is primarily used in creams to provide temporary relief of joint pain from arthritis and mild sprains and strains. Capsaicin produces a heat sensation, which aids in blocking pain.
Lidocaine is another drug used primarily in pain relieving creams. It is a local anesthetic that works by blocking the pain signals at the nerve endings. Unlike capsaicin, lidocaine produces a cooling sensation and is thus often found in creams designed to treat mild to moderate sunburn and other skin irritations. Some pain relieving creams contain natural ingredients, rather than drugs. Camphor, menthol and eucalyptus are commonly found in a variety of topical treatments for sinus headaches.
Though pain relieving creams are relatively safe, there are certain precautions that should be taken when using them. Even over-the-counter varieties should be used according to the manufacturer’s directions and consumers need to be aware of any drug interactions listed. These creams should not be used on open wounds or broken skin unless a healthcare professional has advised it. Patients should also avoid using them in or near the eyes and mouth.