I'm 25 years old male and i'm having allergic reactions in my body possible from a kind of food intakes but from which source I don't know. Whenever it happens I will be having itching and hives all around the affected area. The affected areas can be anywhere. Upper back chest arms etc. Some time facial swelling also happens. This kind of allergies I had earlier too but from last 2-3 months it's happening very frequently. The reaction goes to harsh that it also affect my penis and that also get itching first and then got swelled up. To conquer it I have to take livocitrizn or any anti allergy tablet.