Good Evening. It seems like you have a bacterial infection, most likely an inflamed hair follicle or minor gland. Considering you have fever, you'll most likely need a course of antibiotics. Please see your GP doctor or your dentist. He'll most likely drain it and prescribe you a course of antibiotics and pain killers which should address the pain, swelling and fever within a day or two. Do not apply any balms or heat etc as it'll just make the pain and swelling worse.

It's  viral infection..Topical Antivirals will work out.it can spread to others also.visit an Oral medicine specialist and start with the medicines

hello, it is better to consult a dentist and get it checked, the case needs to be seen clinically before prescribing any medicines. For ulcer, you can add a pinch of baking soda in water and rinse with it. this will give you relief and help in healing of ulcer.

Hello, Mam,do visit a dentist for a check-up.Dont delay.Regards,Dr Sumanmakam,Dental arts,Jayanagar,Bangalore.

Hello You are more likely to be having some kind of infection and your symptoms suggest the same.. visit your dentist soon

Please consult a plastic surgeon.

Visit a specialist in oral medicine asap!