If you have a cough when you turn on the air conditioner, it is mainly because you are allergic to cold air, and it has a lot to do with your body’s weak resistance. You should try to avoid blowing cold air directly into your body when you turn on the air conditioner, and you should also pay attention to turning up the temperature of the air conditioner, which can be set at about 26℃. Often in the air conditioning room should also pay attention to protection, try to avoid wearing too little, when resting can then turn up the temperature of the air conditioning, sweating too much also try not to blow directly on the air conditioning, easy to cause symptoms of cold. If the air conditioner is not often cleaned, the cool air blown out will also be mixed with a lot of bacteria and dust, inhalation will induce cough symptoms, the need to clean the air conditioner, but also to effectively avoid this situation.