Neurodermatitis belongs to psoriasis in Chinese medicine, and can be treated with external washing with Chinese herbs such as chicken blood vine, angelica sinensis, white fresh skin, poria, and atractylodes macrocephala. 1. Topical cleansing with decoction of Chinese medicines such as chicken blood vine, Angelica sinensis, Salvia miltiorrhiza, Trifolium pratense, Cortex alba and other Chinese medicines that have the effects of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis) and softening and dispersing lumps and concretions (softening and dispersing hard lumps and concretions) is suitable for people with generalized psoriasis and dry skin. 2. External washing with decoction of Chinese medicines such as Angelica sinensis, Salviae Miltiorrhizae, Poria, Atractylodes Macrocephala and other Chinese medicines with the efficacy of clearing heat and removing toxins and activating blood circulation and removing blood stasis is suitable for people with a long course of the disease and mossy skin lesions. The above traditional Chinese medicine external washing can be used for the treatment of psoriasis, but the specific treatment needs to identify the evidence, it is recommended that the body should go to the hospital in time to consult the doctor when it is not suitable, and standardized treatment under the guidance of the doctor.