Capzasin

Capzasin I put a little less than ten minutes ago and it burns / stings like no other and my knees (which I applied) is red! WHAT SHOULD I DO?!?!

The only thing I can suggest is to wash with hot water, cold water and let it run on for some time. Contact your doctor offic ... you can have an allergic reaction. Take an antihistamine if you have. It can reduce symptoms.

I'll try soap and water. If you think you have an allergic reaction that you might consider taking a Benadryl

You can wash it if you wish, with cold water and detergent. It will not quite take the sting away. The oil is to react with skin and nerve cells, but it is also believed to reduce or blunt the pain that you try to treat. Read the instructions carefully. Good Luck.