口腔溃疡叫做 Canker Sore, 去药店或菜店的药柜,找 Canker Treatment 的药。
抄一段英文书给你
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Mouth Sores
Fever blisters or cold sores are a familiar problem caused by the herpes virus (page 144). They are usually found on the lips, although they can sometimes appear inside the mouth. Often the blisters have ruptured and only the remaining sore is seen. Fever is usually but not always present. Herpes viruses often live in the body for years, causing trouble only when another illness causes a rise in body temperature. Generally, fever blisters heal by themselves several days after the fever diminishes.
A canker sore is a painful ulcer that often follows an injury, such as accidentally biting the inside of the lip or the tongue, or it may appear without obvious cause. Eventually, it heals by itself.
In Children
Large white spots on the roof of the mouth are a sign of thrush, a yeast infection. It often disappears without treatment.
A virus that can cause mouth lesions in children is the Coxsackie virus. These lesions are often accompanied by spots on the hands and feet—hence the name “hand-foot-mouth syndrome.” The child feels well and there is no fever. Again, this problem will go away by itself.
Other Causes
Drugs sometimes cause mouth ulcers. In such cases a skin rash may be present on other parts of the body as well, and a doctor must be contacted. You will have to stop the drug.
A cancer of the lip or gum is rare except in smokers. It must be treated but is not an emergency. Syphilis transmitted by oral sexual contact may produce a mouth sore. Both of these problems are usually painless. Other conditions that may cause mouth ulcers may also involve eyes, joints, or other organs.
Home Treatment
Mouth sores caused by viruses heal by themselves. The goal of treatment is to reduce fever, relieve pain, and maintain adequate fluid intake.
Children will seldom want to eat when they have painful mouth lesions. Although children can go several days without taking solid foods, it is very important that they maintain an adequate liquid diet. Cold liquids are the most soothing, and Popsicles or iced frozen juices are often helpful.
For sores inside the lip and on the gums, a nonprescription preparation called Orabase may be applied for protection. For canker sores and fever blisters, one of the phenol and camphor preparations (Blistex, Campho-Phenique, etc.) may provide relief, especially if applied early. If one of these preparations appears to cause further irritation, discontinue its use.
Mouth sores usually resolve in one to two weeks. Any sore that persists beyond three weeks should be examined by the doctor.
What to Expect at the Doctor’s Office
A thorough examination of the mouth will be carried out. A prescription will usually be given for thrush. For viral infections, doctors have no more to offer than home remedies. We caution against the use of oral anesthetics, such as viscous Xylocaine, for children. This anesthetic can interfere with proper swallowing and can lead to inhalation of food into the lungs.
Thrush. Suspect thrush if there are large white patches on the roof of the mouth or on the tongue.
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