How long does itching last after a biting midge bite?

Nov 28, 2025 Source: Cainiu Health
Dr. Liu Wenmin
Introduction
If the number of bites is small, the individual has low skin sensitivity, and prompt anti-itch measures are taken, the itching usually gradually subsides within 3 to 5 days. Applying calamine lotion or menthol ointment can help relieve discomfort. Avoid scratching to prevent skin damage, and keep the affected area clean and dry. The skin will then recover quickly, and the itching will fade accordingly.

Generally, itching caused by biting midge bites lasts for 3–7 days, with the exact duration depending on the severity of the bites, individual constitution, and care methods. If in doubt, it is advisable to seek medical advice promptly. Detailed analysis is as follows:

If only a small number of bites occur, and the individual has low skin sensitivity with prompt anti-itch measures taken, the itching usually gradually subsides within 3–5 days. Applying calamine lotion or menthol ointment can help relieve discomfort. Avoid scratching to prevent skin damage, and keep the affected area clean and dry so that the skin recovers quickly and the itching resolves.

If there are numerous bites or the individual has sensitive skin, noticeable redness, swelling, and papules may develop, prolonging the itching to 5–7 days or even longer. Scratching that breaks the skin may lead to infection, further intensifying itching and causing pain, thereby extending the recovery period. In such cases, more careful wound care is required to prevent the spread of infection, and medical treatment may be necessary.

Avoid scratching after midge bites; instead, use cold compresses to temporarily relieve itching. If itching persists beyond one week or signs of infection appear, seek medical attention promptly to prevent worsening symptoms.