There are more ways to repair the skin barrier, and there is no most effective way, among which microneedling is the more effective way, and there are also ways to repair the skin barrier through medication, or daily care. 1. Microneedling: Through needling, the skin repairs itself, increasing the collagen content and thickness of the skin as well as the thickness of the stratum corneum to strengthen the skin barrier. 2. Medication: Topical antioxidant and emollient medications, such as vitamin E cream and recombinant human epidermal growth factor gel, can relieve symptoms such as dryness, flaking, redness, itching, and tightness, and promote the repair of the skin’s stratum corneum. 3. Daily care: keep your face clean and dry, apply cosmetics as little as possible, and do a good job of physical sun protection when you go out to reduce damage to the skin barrier. Eat more food containing vitamin C such as oranges, tomatoes and kiwis. There are more ways to repair the skin barrier, it is recommended to visit the hospital in time and choose the right method for you under the guidance of the doctor.