I have a developed a red, swollen area around one of my upper teeth on the gum line. It does bleed. I have just noticed within the last 2 weeks.  I go to the dentist every six months and never had an issue like this. I have been doing some home remedies first - brushing and flossing after every meal, a mouth rinse, salt water rinse. I have been thinking about what has changed in my lifestyle and the only thing I can think of is the last month, I have started taking Prevacid. Could this be the problem.
Dear sir/madam your symptoms looks more like localized gingival inflammation and should b because of some debris getting pushed inside your gum line. The medicine you are taking has nothing to do with this. The easy solution is visiting a dentist nearby for local curettage of the region, and you must start using a water pick for better oral hygiene. Wish u good health