I think if the cold is caused by blowing the air conditioner, it may be a cold. Because if summer is very hot, and you turn on the air conditioner to blow air-conditioning, then the air-conditioning will directly enter your body, and your body will suddenly cool down. In this case, it will be easy to catch cold, which will lead to colds and colds.
Like a cold, it is generally divided into a hot cold or a cold cold. The reason for this difference is that the two causes are different. If you have a hot cold, it is because you are too hot, which leads to a cold, while if you have a cold, it is because you suddenly get a chill and cause a cold. Generally speaking, if you see a doctor with a cold, the doctor may ask why you caught a cold, that is, what did you do before you caught a cold, or what kind of cold is it according to the symptoms of your cold?
Maybe we will have such an experience in our life, that is, it is warm indoors, and then we suddenly go to the cold outdoor, and we can't help yawning. Sometimes we have a runny nose. At this time, our runny nose is the kind that is particularly clear as water, which belongs to the wind-cold runny nose. Once, we can know that if you have a cold, you will have that kind of clear water runny nose. I think, if you have a cold, then you will, that kind of sticky yellow nose. The doctor will also judge what kind of cold you have according to your condition. For example, in summer, if you often blow the air conditioner indoors, it is likely that the cold will cause the cold. Therefore, in general, air conditioning is used to sleep in summer, and if you don't cover anything, it is generally a cold.