A blister under the tongue may be caused by oral ulcers, mucous cysts, oral herpes simplex, etc. You can use drugs such as tretinoin and chlorhexidine according to the situation.
1. Mouth ulcers: the most common disease, you can generally use tretinoin ointment, furacilin liquid, cediriodine tablets and other drugs for anti-inflammatory, lidocaine gel, benzocaine gel and other drugs can be pain relief, and at the same time pay attention to a light diet, drink more water.
2. Mucous cyst of submandibular gland: translucent, light blue vesicles can appear, mainly treated by surgical excision, the excision needs to remove the cyst and the surface mucosa together.
3. Oral herpes simplex: small blisters appear in the oral mucosa, which can be treated by systemic antiviral therapy with drugs such as acyclovir and ribavirin, and mouth rinsing with chlorhexidine gluconate solution and compound boric acid solution, etc. Serious cases need to be infused with fluids and supplemented with vitamins.
It is recommended to go to the hospital for examination in time, and use drugs under the guidance of the doctor.