Suggest Treatment For Itching In The Palms

Yes, thank you. Just the other day, I started getting extremely iching palms. It comes and goes various times of day but I have noticed that when I am preoccupied, I do not have this problem. When active, staying up, etc. it starts to ich again. I did get some questionable fish the other night. Also, I grow my own tomatoes but have strayed them (organically) with a pesticide that kills mites. I do handle them daily but wash carefully when ready to eat. Help!