<s>[INST] Hello, I am 19 5ft4 have no previous medical issues, but 5days ago got an insect bite on the back of lleft knee just above the joint, it is now bruised around the area, it isnt tender to touch , has a slight itch which i have not been scratching, but I have been getting nausea and hot flushes [/INST] HelloWelcome to Chat Doctor, I can understand your concern for bruising after suffering insect bites. In your query you have not mentioned your age, sex and other relevant details so that the exact cause could be found out. There can be multiple possibilities of the blisters in your condition. It can be a part of simple folliculitis by bacterial proliferation or may be part of some autoimmune problem which is causing blistering. A detailed history with proper work up is required to reach to the exact diagnosis. You should meet dermatologist at the earliest so that exact diagnosis can be made. Do not try to pinch or pop the blister as can get secondarily infected and further complications. Thank you. </s>