###Human: Why am I having red itchy rashes on thighs? ###Assistant: Hello. 1. This looks to me like papular urticaria, which a kind of reaction which is seen with small insect bites. 2. The classical description is central vesicle or crusting surrounded by redness which can be seen in your case. 3. You need to make measures to avoid insect and mosquitoes including changing your bedding and washing your bedsheets in warm water. Use mosquito repellent. 4. For the existing lesions you can use the cream Mometasone, apply twice a day. Tablet Levocetirizine 5 mg twice a day. Do this for one week.