Also known as "aphtha", it is a superficial ulcer occurring on the oral mucosa, which can be round or oval in size from rice grains to soybeans. The ulcer surface is concave and congested around the oral ulcer, which can cause pain due to irritating food. Generally, it can heal itself in one to two weeks. Oral ulcers are often accompanied by constipation, bad breath and other phenomena, so attention should be paid to unobstructed defecation. Eat more fresh fruits and vegetables, and drink more water, at least 1 ml of water every day, which can clean the stomach, prevent constipation and help the recovery of oral ulcers.

Oral ulcers are mostly accompanied by vitamin B2 deficiency, and it is effective to treat them with vitamin B groups such as vitamin B2 and B6. All kinds of fresh vegetables and fruits are rich in vitamins and minerals, so you can eat more yellow and dark green fruits and vegetables, and eat at least 5 grams of vegetables and fruits every day to supplement the lack of vitamins. In addition, vitamin A and zinc should be supplemented by eating milk, eggs, wheat germ and other foods.

[1] Seven methods to cure oral ulcer:

1. After cleaning the oral cavity, apply honey to the ulcer surface with a sterile cotton swab, and do not eat for the time being. After about 15 minutes, you can swallow honey and then continue to wipe it. You can repeat it several times a day.

2. Apply Yunnan Baiyao externally to the wound of oral ulcer, twice a day, and generally recover in 2-3 days.

3. Apply a little sugar to the ulcer surface, 2-3 times a day.

4. Dip a little ice boron powder with a cotton swab and apply it to the affected area. Although it feels a little bitter, the wound will heal after 2-3 days.

5. Take Huasu tablets, 1-2 tablets each time, 3-4 times a day.

6. Eat more tomatoes.

7. Tear off the garlic skin, take a transparent film wrapped with garlic cloves and apply it to the oral ulcer.