Anti-histamine reaction to certain allergens whether food or environment. Common allergens include but not limited to enviroment triggers like
- pollen, dust mite, pet dander, dust mites and mold , food like peanuts, milk, sea food, tree nuts, wheat, eggs and milk, insects like bees or wasps, medications specially penicillin or penicillin-related antibiotics. Symptoms include but not limited to nasal congestion, sneezing, watery eyes, throat itching, sinus headache, cough, wheezing, Treatment can range from simple anti-histmaine like benadryl, nasal decongestants like, nasal steriod spray, allergy eye drops.