Damaged stratum corneum can be repaired by reasonable treatment and maintenance. Usually frequent exfoliation and long-term use of cosmetics and drugs containing hormones lead to thinning of the stratum corneum, and capillary dilation can cause damage to the stratum corneum. Some patients with skin diseases, especially those prone to allergies, also tend to have a thinning stratum corneum, and can usually take the following measures to repair the stratum corneum: 1. Avoid stimulation: stop using drugs or cosmetics containing hormones and avoid using exfoliating products, especially those containing fruit acids and salicylic acid. When you go out to do sunscreen to avoid UV stimulation, you can choose to hold a sun umbrella or wear a sun hat; 2, skin moisturizing: use a mild cleanser and moisturizing effect of skin cream or lotion, especially in autumn and winter to keep the skin in a hydrated state, otherwise the capillary dilation of dry skin more obvious, and may appear local itching, patients scratching the skin can also cause skin damage. If the damage to the stratum corneum is more serious, with large areas of redness, heat and tingling, patients should seek medical attention and use correct medication under the guidance of a doctor, or use medical skin care products, such as urea cream, vitamin E cream, petroleum jelly, etc. instead of treatment to repair the skin barrier. In addition, consume more pig’s feet and fish skin to supplement collagen, avoid spicy diet such as pepper, onion and ginger, avoid smoking and alcohol, patients with skin diseases should abstain from eating beef and mutton, and eat more fresh vegetables and fruits to help repair the stratum corneum.