Now is a good time to eat pineapple. Pineapple is not only delicious, but also cheap. Yesterday, I bought a big one at the fruit shop. It's too hot. I just got home and didn't have time to soak in salt water. Just getting started, put one piece into your mouth. However, it didn't take long for my tongue to feel a little numb, astringent and uncomfortable. When I got up this morning, I suddenly found a pimple on one side of my nose, only then did I know that the pineapple was on fire. Moreover, pineapple also contains bromelain, which will dissolve fibrin. Patients who eat too much will naturally suffer from broken tongues. If this happens, I suggest that you can drink a glass of milk or gargle with salt water, which can effectively relieve it. So, be sure to remember to soak in salt water first and then be greedy.

2. Kiwifruit

Kiwi and Kiwi are the same fruit, rich in vitamin C, soft and juicy, and sweet and sour. Many people think that kiwifruit combines the sweetness of strawberries, the softness of bananas and the acidity of pineapples. However, some kiwifruits that are not fully ripe are difficult to knead, and the sugar powder is very low. They taste sour and astringent, and they feel stinging. That's because the protease contained in it can decompose protein on the tongue and oral mucosa, causing discomfort. So when you buy it, you should choose something ripe and soft, or you should put it with bananas or apples to ripen before eating.

3. Sugarcane

Sugarcane has ended in March. Mainly produced in tropical and subtropical regions. Because of the large temperature difference between day and night in the planting environment, sugarcane has high sugar content and is the main raw material for making sucrose. However, many people will have the same experience, that is, their tongues will hurt after chewing sugar cane. The most important reasons are these two reasons. First of all, sugarcane has a high fiber content and is particularly thick. Compared with the delicate tongue, it will produce friction when eating, which is easy to sting the tissue on the tongue. Secondly, sugarcane juice is rich in sugar, and salivary amylase secreted by the tongue can convert sugar in the mouth into maltose, which is easy to make the tongue blister during this reaction. In general, don't worry, as long as the wound is not big and there is no ulcer, it will heal itself without too much treatment.

4. Litchi

As we all know, eating too much litchi is easy to get angry. Sugarcane can't be eaten more than 1~2 at a time, and litchi is different if teeth can't stand it for a long time. It is sweet and juicy. Adults and children can't eat it, but eating more may cause blisters. Because litchi is rich in glucose and sucrose, it can supplement energy and nourish brain tissue. However, eating lychee every day generally does not exceed 300 grams. Eating too much will cause great anger, dry throat and dry tongue. Once you get angry, you can drink mung bean soup or green tea in moderation to reduce the fire.