What causes itchy bumps on the waist that look like mosquito bites, and what should be done about it?

In general, itchy bumps on the waist resembling mosquito bites may be caused by insect bite dermatitis, urticaria, eczema, or other factors, and appropriate treatment should be administered accordingly. Specific analyses are as follows:

1. Insect Bite Dermatitis

If the waist area is bitten by insects such as mosquitoes or fleas, insect bite dermatitis may develop, leading to symptoms like papules, vesicles, and itching. Patients can follow medical advice to apply topical treatments such as calamine lotion or zinc oxide ointment. Avoid washing the affected area with hot water.

2. Urticaria

Urticaria may result from factors such as temperature changes, sunlight exposure, or friction. Due to the dilation and increased permeability of small blood vessels in the skin and mucous membranes of the waist, symptoms such as wheals and itching may occur. Patients can take oral antihistamines such as levocetirizine hydrochloride tablets or loratadine tablets as directed by a physician. Scratching the affected area should be avoided in daily life.

3. Eczema

Eczema may be triggered by external irritants, stress, or other factors, causing symptoms including papules, papulovesicles, small blisters, and itching. Patients can follow medical guidance to apply topical medications such as mometasone furoate cream or halometasone cream. A light and balanced diet should be maintained in daily life.

In addition, this symptom could also be caused by conditions such as scabies or herpes zoster. It is recommended that patients seek timely medical evaluation at a hospital.