Blisters on gums can occur because of gum infections, side-effects of some medicaments or can occur because of some systemic problems. Infections like cold
sores also cause blisters on gums. Infected tooth can also lead to blisters on gums. Gum infection can occur because of impingement of some sharp food stuff on gums or can occur because of plaque
and calculus deposits in relation to teeth. If gums infection is cause of blisters in mouth, then maintain good oral hygiene
to avoid any food accumulates in relation to teeth. You can also do warm saline rinses 3-4 times a day. Dental cleaning and root planning may also be required. If there is infected tooth present which has lead to blister on gums, then treatment is done for infected tooth. If blisters are because of cold sore infection, then they will regress on its own in some time. Without examination, it is difficult to comment about definite reason of recurrence of blisters on gums in your case. You can visit your dentist
for evaluation. To avoid gum blisters, it is important that you follow good oral hygiene measures. For some temporary pain relief, you can apply orajel
over gum blister or can take some pain med.