If the cold is caused by the invasion of cold evil, the cold is caused by nasal congestion, white nasal discharge, clear nasal discharge, fear of cold and fear of cold can be steamed. Because sweat steam can be pungent and warm to remove the cold Qi in the body, it is very helpful to relieve the symptoms of wind-cold cold. However, if the nasal congestion and runny nose are caused by wind-heat cold, then the body is dry and hot, and the lung heat is too heavy, you should not sweat, otherwise it will aggravate the symptoms of wind-heat cold.