<human>: I had a root canal on my front tooth and had a blister on my gum over the tooth next to it. Ive been taking Keflex for a week but see little improvement ..the dentist also opened it up ..just wondering how long it takes to heal..Ive been rinsing with warm salt water too.
<bot>: Thanks for using Chat Doctor. Read your query. The blister you have described suggests an ulcer. I would advise you to continue with the medication prescribed by your endodontist. For the lesion, apply McCoppin or mucosal two or three times a day till it reduces. Reduce spicy and hot food. If you smoke, reduce smoking. Do antiseptic mouth wash gargling. The ulcer should heal with a week. Hope this was helpful, and you have a speedy recovery. Thanks and regards.