I used deep heat for some muscle pain after the gym, heated up and worked perfectly - relief was clear. However woke up the next morning with a perfect circular blister on the back of my wrist. I washed my hands afterwards so how I don't know

I used the spray for broken ribs and bruised hips, it worked fine but using the spray in an enclosed space led to inhalation resulting in a sore throat and upper respiratory irritation.

Deep Heat topical cream to treat my muscle pain after playing tag rugby. Got a rash on my leg within a minute where I applied and it was also itchy and sore. Never using it again