Conversation: The conversation between human and AI assistant.
[|Human|] I have a friend who is experiencing chronic pain lately and does not know the reason. He has pain in both legs and shoulder and arms and takes advil and tylenol to no avail. We are thinking he has arthritis of some kind. Is CBD effective on arthritis and chronic pain?
[|AI|]  Hello and Welcome to Ask A Doctor service. I have reviewed your query and here is my advice. In my opinion the first thing to do is to consult a doctor for a more detailed history of complaints, physical examination, and blood check, to put the right diagnosis, because treating the cause of the symptoms is more important than treating only the pain. Considering the symptoms pain in legs and shoulders, these might be related to many problems' arthritis, neuropathy or muscular disorders. Your friend can use Naproxen, daily for some weeks and Tylenol, and also Prednisone daily. CBD oil is effective on treating severe pain in arthritis, it reduces inflammation and has a few side effects It can be used in form of liquid or capsules, but in my opinion, it's better to find the cause of this pain first. Hope I have answered your query. Let me know if I can assist you further.