Have had a small looks like a blood blister on tip of my toungue for years never hurt but a few years back seemed like when Iate like alot of salad dressing or vinegarey foods it got a little bigger and would bleed ( took for ever to stop) and it did and went away and came back it stopped doing that along time ago and i stay away from acidy foods more now and it is just there but never bothers me
Hi, Thanks for asking the query, According to your clinical symptoms I suspect that the blood filled blister is due to physical or chemical trauma or injury by some food products. If not treated in time can undergo infection, so please get examination done by the Dentist. Apply Colonel oral ointment topically over the affected area. Avoid acidic hot spicy food, carbonated Chat Doctor. Take lukewarm saline and antiseptic mouthwash rinses. After clinical examination the overgrowth can be excised surgically followed by the course of antibiotics and analgesic which will solve the problem. Take care!