Coloring Hair Without a Skin Test?

If you have a cap on to do highlights, do you need a skin test first? Also is there any chance the bleach can get on the skin? People keep reasuring me it wont but I’m not convinced. Please help I have a condition where I dont like anything, like chemicals going on my skin.

Thanks

The side effects from dyes can be quite severe and in case it does drip onto the scalp, having the skin test will be reassuring when you do have your hair dyed. Accidents can happen, and it’s better to be safe than sorry.