Psoriasis, or psoriasis, can be aggravated by infections, mental stress, and bad habits, and once aggravated, it needs timely medical treatment. Psoriasis is a common chronic inflammatory skin disease, usually affected by genetic and environmental factors, and easy to recur, in which infection is one of the important factors leading to the aggravation of psoriasis, especially upper respiratory tract infections, such as tonsillitis and chronic pharyngitis, etc. If study or work causes excessive mental stress, it can also make psoriasis worse. Excessive mental tension caused by study or work can also aggravate the condition of psoriasis, so it is important to maintain a good mental state. Unhealthy living habits such as obesity, alcoholism and smoking caused by unreasonable diet can lead to the recurrence or aggravation of psoriasis. Psoriasis should seek medical treatment in time and be treated reasonably under the guidance of doctors.