Burning sensation on my face and scalp with rash. what std could cause this feeling and unprotected oral sex two months ago. please help!

Not typical: A rash with a burning sensation of the face and scalp is not likely to be caused by an STD. It is more likely that you have a dermatological condition. Consider scheduling a virtual visit today with one of the Healthtap primary care doctors or dermatologist so they can visualize the skin to help determine the next steps in evaluation.