Is全身itching after a mosquito bite an allergic reaction?

Itching all over the body after a mosquito bite may be due to an allergic reaction, but it could also be caused by factors other than mosquito bites. It is recommended to use medication under a doctor's guidance to relieve symptoms.

A person may develop an allergic reaction to mosquito saliva. When bitten, the mosquito's saliva enters the skin, triggering a noticeable inflammatory response that can lead to papules, wheals, and inflammatory red patches. Therefore, widespread itching after a mosquito bite may indicate an allergic condition clinically known as papular urticaria. However,全身 itching might not necessarily result from mosquito bites—consuming foods that commonly trigger allergies, such as mangoes, crabs, or shrimp, could also cause generalized itching.

If全身 itching occurs due to allergy, avoid scratching the skin with hands to prevent skin damage and secondary inflammation. Topical anti-itch medications can help alleviate symptoms. If necessary, antihistamines such as cetirizine hydrochloride or chlorpheniramine maleate may be used under medical supervision. Additionally, topical application of medications like hydrocortisone butyrate or budesonide can help reduce discomfort.