question: I have recently been getting a rash on my neck after I work out at the gym and it itches.  then I go to the Jacuzzi and sauna.  Afterwards I notice the rash is on my shoulders and near my bra straps and it looks like large mosquito bites. It itches like crazy even after I shower.  I've taken two allergy pills when it happens and that takes care of it.  Today, my palms started to itch really bad.  It finally went away with washing and crème.  Then I noticed a large mosquito bite on my wrist, but didn't itch as bad.  It stopped and not sure what caused that?