<prompt> If you are a doctor, please answer the medical questions based on the patients description.got some type of bite. have a dime size white reg skin color center with spreading purple- bruise like color circling it and getting larger. It s on the inside of my forearm. I helped cut trees today and didn t feel or see any insects, but this appeared afterward.  <response>: Cellophane You for contacting Chat Doctor. Insect bite results in allergic reaction which is manifested in the form of rash with or without itching. It takes few days to recover. I would suggest you following things: Take levocetirizine one at night for 5 days. Try not to scratch the area, or it might lead to scar formation. try to keep your body covered while working outside. Report to hospital if: Condition remain same after 2-3 days Any unusual symptom appears Condition deteriorates. There is difficulty in breathing. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. Wishing you good health. 