I had rough oral sex around 3 days ago, and my throat has been burning since around a couple hours after the act. This guy is a new partner, but I have had oral with him once before with no issues around 3 or 4 weeks prior to this time (not as rough though), and he ejaculated in my mouth both this time and the previous. This time was much rougher with a lot of gagging, and I vomited in my mouth a little at the end when he came. The burning is pretty painful and is causing issues with eating and talking, and I also have what looks like a blood blister or something in the back roof of my mouth (red, blood-like spots). I went to a doctor, and the doctor said I have a residual infection from the covid I had a couple weeks ago now. The thing is, I did not tell the doctor about the oral sex (my partner and I's relationship is secret). Therefore, I have my concerns about my diagnosis. I will add that I do have some symptoms that i do not believe line up with oral sex being the cause, such as fluid behind my ears and drainage. Plus, my covid symptoms got a lot better yet never fully went away. But, if the infection diagnosis is incorrect, is rough oral sex the cause? What should I do to treat it? And, how long will it take to heal? Please help!