Yep the very one, I was due to have the tooth extracted after I finished the penicillin but that appointment got canx. Thankfuly the pain from the abscess has gone for the time being.
I’ve recently had similar issues, could be an abscess that require anti biotechs that a dentist will prescribe, definitely gargle with salt, cosine for the pain and the expensive mouth wash can’t think of it’s name, begins with C from pharmacy or super market helped me, she has my sympathy