1.What are the principles of psoriasis treatment? The basic principle that doctors and patients should jointly abide by is “knowledgeable medical treatment and green treatment”. We emphasize the combination of prevention and treatment, the combination of drug and non-drug treatment, the combination of drug medical intervention and psychological guidance, and focus on individualized differences to obtain the maximum therapeutic effect with the minimum input. In the treatment of psoriasis, emphasis is placed on health education for each psoriasis patient, relieving the patient’s mental burden, allowing the patient to effectively understand the correct treatment concept of modern medicine for psoriasis, and providing appropriate treatment plans and predictable treatment expectation values. As far as possible, we will look for the factors that trigger the aggravation of the disease and guide the patients in prevention and active treatment. Generally speaking, limited and light psoriasis is mainly treated externally, while severe psoriasis should be given comprehensive treatment. 2.Can psoriasis be cured? In view of the objective fact that the causes and pathogenesis of psoriasis are not yet very clear, eradicating psoriasis is something that cannot be done at this stage of medicine. So, can psoriasis be cured? We say that the majority of psoriasis patients can be clinically cured. Through a certain period of treatment, the skin lesions of psoriasis patients will gradually fade and disappear until they reach clinical cure. Some patients even achieve this result without treatment, which is due to the natural remission law of psoriasis. Not only that, some patients can remain clinically cured for a very long time. In a group of long-term follow-up of psoriasis patients in remission, it was found that about 1/5 of them had not reoccurred psoriasis lesions for more than 15 years after the complete remission of psoriasis lesions after the initial onset. However, the majority of patients will relapse after a long or short remission, especially those with a long disease duration and a high frequency of attacks despite treatment by various methods, and have even less chance of obtaining long-term remission. 3.What is the purpose of psoriasis treatment? Although psoriasis cannot be truly cured at present, the majority of common psoriasis can be clinically cured through treatment, and some severe psoriasis can also be controlled through treatment and transformed into lighter psoriasis. Therefore, the purpose of psoriasis treatment is to first control the development of the disease, reduce the lesions as much as possible, alleviate the clinical symptoms of patients, and minimize the impact of the psoriasis rash on the patient’s body as well as life and work. You can’t blindly pursue the removal of skin lesions in the full sense. 4.To what extent should psoriasis be treated? Most doctors believe that a more conservative treatment is clinically appropriate for common psoriasis. Then, to what extent should psoriasis be treated? If the skin lesions are widespread, painful and uncomfortable, affecting appearance and life, internal and external medication can be used at the same time. After the skin lesions are controlled and tend to subside, attention should be paid to restricting the medication and not to increase or change the dosage at will or too much. At present, the commonly used treatment methods include immunosuppressants, immunomodulators, corticosteroids, retinoic acid, photochemotherapy, anthralin, tar, derivatives of vitamin D3, and Chinese medicine, etc. These methods will be selected or used alone or in combination by the doctor according to the patient’s condition. 5.How to choose the treatment for psoriasis vulgaris? Most of them are moderate or light psoriasis, so the basic principle of its treatment should be safe, effective and economical. For patients with mild psoriasis, generally only topical topical drugs are needed for treatment. Even if the skin lesions do not fade easily and completely, there is no need to use oral drugs that may have systemic damage. If the lesions are more extensive, methods with definite clinical effects such as simple ultraviolet irradiation or photochemotherapy can also be used, and some safe oral herbal preparations, Chinese herbal bath therapy and steam therapy can be used as auxiliary treatments. For common psoriasis with more lesions and ineffective conventional treatment, oral drugs such as retinoic acid and immunosuppressants can be used with caution. Although the efficacy of these drugs is certain, long-term use may have systemic toxic side effects, and attention must be paid to the time of use and alternative means after withdrawal. 6.The status of psychotherapy in the treatment of psoriasis? Psychotherapy should be used as an important basic treatment throughout the clinical treatment. Since the pathogenesis of the disease has not been completely elucidated, and the mental factor is also one of the important reasons for the onset or aggravation of psoriasis, and since various treatments cannot control recurrence, patients are prone to irritability, depression, anxiety, pessimism, blind optimism and self-abandonment, etc. Medical personnel should introduce the current prevention and treatment status of psoriasis in detail and explain the necessity of treatment to improve patients’ quality of life. Encourage patients to maintain a stable psychological state, optimistic and positive thoughts and emotions, and a healthy and upward life attitude. Avoid excessive emotionalism or extreme sadness and happiness. Enhance the patient’s understanding and recognition of the disease and eliminate the fear of the disease.