i got a tingly rash on the back of my hand, i noticed the other day that i had a red blotch on the back of my left hand looks like it could be a bite but isnt raised, but i can feel a very small raise under the skin , then very small red pimples appeared around it but didnt take any notice of it cause there was no itch . Then yesterday i noticed on my right hand that i had a slight rash that developed and spread through out the day , its a little red and seemed to have spread up my finger. i took an anti- histamine and it doesnt seem to have made a difference , and put some tiger balm on it . It has not spread on left hand .