Why Do Midge Bites Itch So Much?

The swelling around the bite is caused by histamine, which is produced by the immune system. Histamine increases blood flow and white blood cell count around the affected area, which causes inflammation or swelling. Mosquito bites itch because histamine also sends a signal to the nerves around the bite.

How do you stop midge bites from itching?

Apply cold compress, such as with an ice pack or a wet cloth, to soothe any burning sensation you feel on the bitten area. Take an antihistamine to relieve the swelling and itching.

How long are midge bites itchy?

Notice your symptoms. Initially, the bite will leave a small red dot. However, that dot may expand to 1 to 2 inches in diameter and become a slightly raised welt. The welt will be itchy and mildly painful and can last for about two weeks.