It depends. Yes, but drive as little as possible. Pores have a strong filtering effect. When sweating heavily, the filtering protection almost disappears. When sweating in summer, the pores of the body will open. At this time, blowing air conditioner or fan will be cool, but the moisture and cold air of air conditioner will directly drive pores, skin and muscles to the depths of meridians and joints, which will easily cause adverse effects on the body.