Whenever you have a bad cough at night, most cases are after an external sensation, and the subsequent cough is difficult to get well, what should I do in this case? Here are some suggestions: 1. Be careful not to eat anything heavy at dinner or after dinner when the cough has not fully recovered. If you eat too much flavor for dinner, try to drink a little light porridge, stick crumb porridge or rice porridge, so as to neutralize the taste of eating too much. 2. Drink a glass of hot milk before going to bed, because milk itself moistens the lungs very well, and milk does not need to be seasoned, so it can also neutralize the accumulation of sour, sweet, bitter, spicy and salty flavors, to avoid triggering irritation of the airways. 3. Put a phlegm-cleansing medicine on the bedside table at night before going to bed. The reason is that after an external sensation or bronchitis, most people cough at night as soon as they lie down to sleep because phlegm slowly creeps up a little bit, at this time to press the cough to press back the phlegm, to the second half of the night again up, and have to cough anxiously. The best way to drink a little phlegm medicine, do not have to finish a drink, a sip on the line, and then gently swallowed several times, in the process can gently do the exhalation of phlegm action, is to breathe out, if there is phlegm out, and then go to sleep is not easy to cough again. 4, if the indoor air is dry, like the winter is hot, the heating house is too hot. This time you need to do humidification in the room, the best way is water vapor humidification.