Blisters
In some cases, the red and swollen sites of a bedbug bite can develop into pus-filled blisters. Blisters can get bigger with time if not treated with a topical medication as soon as possible. Draining or using an antibiotic ointment on the blister are effective treatments for your blisters. Often time the blisters may feel tight and throbbing, which reduces significantly as soon as it pops.
It can also cause itchiness and may lead to an infection if not properly cleaned from time to time. Blisters tend to cause pain after bursting, exposing new flesh, which should be covered with a bandage.