Pain after a bug bite is usually caused by the release of toxins from the bug bite, resulting in neuromuscular pain. Depending on the situation to be treated, relatively light patients, if the bite site does not appear red and swollen performance, you can apply soap and water, or 84 disinfectant for local disinfection. Apply cool oil, anthritis, flower lotion for treatment. If the situation is more serious, local redness, swelling, pus performance, to go to the hospital, under the guidance of doctors for further treatment.