It could be an allergy to something new u used, like new body lotion, detergent or even something u ate,,,try cortizone cream & u could try benedryl to help with the itching. Both of my children r allergic to bug bites they swell up & itch them like crazy there doctor Said to give them benedryl. It works great, but becareful because it CAN MAKE U VERY DROWSY esp.if u have never taken it before. Both of these can be purchased @ any store like, Target, Walgreens, ect. Try this I really hope it helps ,.if not u probably should see someone hope u feel better soon! Mickey")