Tornado, you say it's your bottom right mouth and has redness. Are you talking about the gums? You may have an infected tooth, or ear issues and jaw joint issues can radiate to the mouth. I hope you get some relief soon! Praying for you. 🙏🌼
Tornado, you mentioned that there is redness and it is very painful. Are you running a fever? Do you have a toothache? It could be anything simple from a cavity or needing a root canal or you could have an abscess or something more. Get yourself to a dentist and have it checked out and move forward from there. Flappsy is correct, it could be something more complex involving your jaw, your ear or even a combination of the two. I wouldn't wait, is get medical attention.
Tornado I would go to the ER they can check and see if you have an abscesses tooth or something else going on. I'm sure they would do a series of x-rays of your mouth. Hope you feel better soon. Will be praying for you and sending you lots of hugs
Tooth abscesses can be pretty bad. I had one, and (stupidly--but I had no choice as it was a Sunday) went to an emergency dentist. It was bad, and these things go from bad to worse really quick. I saw my dentist just after, she freaked out, and sent me right away to the endodontist. The whole thing cost a lot of money, was two root canals within a couple of days, involved being on antibiotics for awhile, and if it had gotten worse, it would have gone into the bone.
Whether it's a jaw thing or a tooth thing--red and hot, not good. Please go see someone. If they're a doctor and not a dentist (and its a dental problem), at least they can give you antibiotics and something for the pain until you see the dentist.