The primary treatment for oral blood blisters is to remove the irritants as soon as possible, remove the residual roots and crowns, grind down the sharp tooth tips and marginal ridges, and modify the bad restorations. Correct bad habits such as lip and cheek biting, change infant feeding methods, and remove bottle sucking methods. Surgical correction of short lingual tether. Next is the local application of corticosteroid, nourishing Yin and muscle, ice borax and other anti-inflammatory and antiseptic drugs. Treatment of oral blood blisters: common oral blood blisters are hard bruised mucous membrane, inadvertent bite to the case of submucosal capillary bleeding, there is generally no obvious pain discomfort, foreign body sensation. If there is no other discomfort, should not be a big problem, it is recommended to continue to observe, avoid biting or stimulation to, chew slowly when eating, maintain good oral hygiene can be, available light salt water rinse mouth to prevent infection, small oral blood blisters can be self-absorption, do not worry, medical treatment can be to the oral mucosa department. Oral blood bubble prevention methods: 1, pay attention to oral hygiene, avoid damage to the oral mucosa, avoid spicy food and local stimulation. 2, keep a relaxed mood, optimistic and cheerful, avoid things and anxious. 3.Ensure sufficient sleep time and avoid excessive fatigue. 4, pay attention to regularity of life and balanced nutrition, develop certain bowel habits to prevent constipation.