Can a vaginal infection cause a skin reaction and welts ? my daughter has had something like hives but its not allergy related and she has had a blood test and been to the dermatologist - her results are clear, she does have an infection and need adv

Med/ immune reaction: Sometimes, an infection itself or the medication used to treat it can cause an allergic/immune skin reaction. Use Benadryl (diphenhydramine) or claritin (loratidine) to control the skin reaction. Once the infection is cleared, the skin reaction should go away on its own. If it persists, make sure she see a DR who can suggest additional treatment.