I am experiencing gum swelling on one tooth i did a salt rinse the swelling went dwn then immediate back up think its a abscess. advil 600mg dont wrk?

See a dentist: Your issue may involve a necrotic tooth nerve, a periodontal defect, subgingival calculus, or even food caught just below the gumline. This needs to be examined and treated by a local dentist... please call for an appointment.

Gum swelling: Usual cause of swelling is infection of gum, tooth, or both. Salt water will help carry away some of the pus, but it's only a temporary partial fix. Analgesic will block pain, but not cure the infection. Sorry, there is no OTC solution to your problem. Pease see your Dentist for appropriate treatment.