<prompt> Answer this question truthfullyWhat is the explanation for allergies, and how can they be distinguished from other medical conditions?  <response>: <reason> Allergy must be differentiated from other diseases that cause Dermatological Urticaria, pruritus, flushing, Angioedema, Respiratory Rhinorrhea, chest tightness, Wheezing, Dyspnoea, Sneezing, Shortness of breath Mucosal Mucosal swelling affecting nose, lips, tongue, larynx, pharynx, conjunctiva, GIT Ocular Periorbital edema, Conjunctival Congesion, Itching, Systemic Hypotension. Allergy can be differentiated according to the type of allergy. 