Suggestion: You can usually rub some silicone cream or cod liver oil ointment to lubricate and protect the newly grown epidermis, and you can also take some drugs such as vitamin C appropriately. Usually avoid spicy food and eat more foods containing more vitamin A.

Vitamin A, also known as retinol (its aldehyde derivative retinol) or anti-dry eye factor, is an unsaturated monohydric alcohol with alicyclic ring, including vitamins A 1 and A2 in animal food, and it is a substance with biological activity of retinol. Vitamin A 1 mostly exists in the liver of mammals and saltwater fish, while vitamin A2 often exists in the liver of freshwater fish. Because the activity of vitamin A2 is relatively low, vitamin A usually refers to vitamin A 1.

Vitamin A can participate in the synthesis of glycoprotein, which is very important for the normal formation, development and maintenance of epithelium. When vitamin A is insufficient or deficient, it can lead to abnormal glycoprotein synthesis intermediates, accumulation of low molecular weight polysaccharides and lipids, proliferation and thickening of epithelial basal layer, accelerated cell division, increased myofibril synthesis, flat, irregular and dry surface cells and other changes. Endometrial keratinization of respiratory tract, gastrointestinal tract and urogenital system, such as nose, pharynx and larynx, weakens the natural barrier (structure) to prevent bacterial invasion and is easy to be infected. In children, it is easy to be complicated with respiratory tract infection and diarrhea. Some kidney calculi is also related to keratinization of urinary tract. Excessive intake of vitamin A does not increase the resistance to epithelial infection with dose.