An allergy occurs when a person’s immune system reacts to substances in the environment that are harmless to most
people. These substances are known as allergens and are found in house dust mites, pets, pollen, insects, molds, foods, and some medicines.
Associated Symptoms
- Tingling or itching in the mouth
- urticaria
- wheezing
- Nausea or vomiting
- Diarrhea
- Bloating
- Flatulence