It is not recommended to drink tea water during a cough. First of all, there are many types of tea, different processing methods, the type of tea as well as the nature is also different, but also has some cold, so the cause of the cough is different, drinking tea is also different, it is best not to drink tea water at this time. In addition, tea contains a certain amount of theophylline, caffeine and tannic acid, these substances have the effect of stimulating the central nervous system, enhancing blood circulation and promoting a faster heartbeat, and may induce the appearance of cough, so it is not recommended to drink tea water during cough. At this time, if you really want to drink tea, you can drink some flower tea instead. It is recommended to boil some water with Luo Han Guo or boil water with fishy grass to drink, which has a certain therapeutic effect on cough. Tea is generally better to drink after the cough has recovered. If the symptoms of cough are more serious, you should go to the hospital to find out the specific cause of the cough, and it is better to treat the cause of the cough.