3 days ago I started to feel pain around the gingival margins of my maxillary molars on the palatal side. The area appears erythematous. In addition, the area behind my right mandibular molar is also reythematous and swollen. Also painful. The interesting thing is that everything is one sided (right side.) Later on, my hard and soft palate on that side started to hurt, then moved down my throat, and now my lymph node is swollen and painful on that side. I also have geographic tongue with pain but only associated to the  right side. Taste has changed. I feel pain when I move my mandible around the mandibular border. Since yesterday I ended up with a fever of 101 that kept on coming and going. chills were involved.  Now today i woke up with a blister on the inside of my lip (on the right side.) I am currently placed on z-pack. What could I be dealing with?
Thanks for your query, the fever and the blister could be secondary to herpes virus infection and swollen gums and erythematous gums could be because of the deposits get your teeth cleaned once.consult your oral physician you can take symptomatic treatment like topical anesthetic and analgesics for blister and mucosal pain for fever take systemic antipyretic. I hope my answer will help you.take care.