What are the 4 types of allergic reactions?

Answered by 1 Apollo Doctors

Dr Ranjith Darla

General Practitioner

MBBS
3+ Yrs

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Type I or anaphylactic reactions which occur in food/drug allergies, hay fever, allergic rhinitis and asthma. Type II or cytotoxic reactions which occur in mismatched blood transfusion, immune mediated hemolysis or thrombocytopenia. Type III or Immunocomplex reactions which occur in Rheumatoid arthritis , Systemic lupus Erythematosus. Type IV or cell mediated reactions is a delayed hypersensitivity which occur few hours after exposure to any allergens.

Answered 04/07/2025

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I've been sneezing a lot these past couple of months, and it feels like I have a cold. Whenever I sneeze, my eyes start watering. What could be causing this, and is there anything I can do to make it stop?

it's normal

Answered by 1 Apollo Doctors

I'm experiencing skin itching all over my body whenever I eat meat, fish, or eggs. There aren't any rashes, but it seems to happen in different areas like my leg, chin, and hands at different times. Could this be an allergy or something else I should be worried about?

It sounds like you may be experiencing food allergies that are manifesting as skin itching. To help alleviate your symptoms, you can try taking an antihistamine such as Cetirizine 10mg once daily. Additionally, you can apply a soothing lotion like Calamine lotion on the affected areas to help with the itching. Make sure to avoid consuming meat, fish, and eggs to prevent further allergic reactions.

Answered by 1 Apollo Doctors

Why do I start sneezing non-stop and get a runny nose if I brush my teeth late after waking up? It's really frustrating because it affects my whole day. I saw a doctor in Nellore, A.P., and he gave me MontipLC for two months but it didnt help much. He suggested some tests at Apollo Hospital in Chennai. What do you think I should do next or what might be causing this?

See a specialist for accurate diagnosis and targeted treatment.

Answered by 1 Apollo Doctors

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.