Hi I have a blister in my gum and was swollen it mad my upper lip hurt with a simple touch my mom told me to rub a cotton with hydrogen peroxide and it just made it whiter and bigger she said it was just the infection but I m worried its something worse now my tooth hurts and it also hurts to talk and open my mouth help please!!!!...
Hi, Thanks for asking the query, Your clinical symptoms and history suggest that you probably are having periodontal abscess formation arising from the infected tooth. Blisters in the mouth are due to some trauma due to biting , as a result of fever, cold some type of blisters are caused by herpes simplex, allergies due to some foods, vitamin deficiencies. Get clinical evaluation of the tooth , take an x-ray of the concerned tooth. Take multivitamin supplements. If it is due to abscess get it Chat Doctor.  Avoid eating hot , spicy , aerated , carbonated foodstuffs. Use saline water gargles 3-4 times a day, use antiseptic mouthwash gargles twice daily keep the area clean.  Take complete balanced diet. Hope this helps out. Regards....