<s>[INST] I have several Mosquitos bites with this I have been experiencing, swelling of my left ankle and blistering of the bites there. Blistering and pus coming out of many of my bites all over my body. Tightness and tenderness in my skin, been nauseous and also have pins and needles in my left arm. What could this be? [/INST] Thanks for contacting ChatDoctorYou are concerned about getting an infection in the area of prior mosquito bites. This is actually a common occurrence. When the mosquito bites, and you start scratching the area you cause small cuts to occur on the skin and that introduces bacteria into the wound. This progresses to infection and small abscess. I recommend that you seek medical attention where they can give you oral antibiotics. I also recommend1. Elevating the leg2. Using warm compresses3. Tylenol for that pain and burning Hope I answered your medical question. Please contact us again with your medical questions and concerns </s>