Here's a few articles on topicals to start.
Medical marijuana/CBD salves:
If you live in a state where medical marijuana (cannabis) is legal, you can find a plethora of locally made balms and salves sold in dispensaries. Fibromyalgia patients often report that cannabis used topically is very helpful for pain relief from arthritic joints and from sore muscles of fibromyalgia without making them feel “high.”
Cannabis contains two primary pain-relieving chemicals, THC and CBD (cannabidiol). THC is a strong pain reliever but also causes the psychoactive effects of feeling “high.” However, topical usage allows the pain-relieving effects of THC without the brain effects, as very little is absorbed into the bloodstream. CBD gives mild pain relief along with anti-inflammatory and muscle relaxation effects. The most effective medical cannabis salves contain roughly equal amounts of THC and CBD.
Cannabis used topically does not cause a “high” feeling, but can be detectable in urine drug screening. If you live in a state where medical marijuana use is legal, dispensaries are the best option to get high quality cannabis balms.
For those who live in states where cannabis is illegal, another option is a hemp extract that contains CBD only, as these are currently legal to be sold in all 50 states. Topical balms and salves that contain CBD derived from hemp plants have no mind-altering or psychoactive properties, but still can lower pain and inflammation and ease muscle spasms.
Muscle and joint pain
Pain from neuropathy (nerve damage)
Learn whether medical marijuana is legal in your state at www.medicalmarijuana.procon.org or Marijuana Policy Project at www.mpp.org
Many online CBD topicals are poor quality may not contain much CBD. One reliable source is www.plusCBDoil.com.