Egg yolk oil is mainly used to treat mild burns. Egg yolk oil is an oil extracted from the yolk of an egg and is a topical medication used to aid in the treatment of mild burns. This is because egg yolk oil is rich in vitamin A and lecithin as well as other oils and fats, which play an important role in skin regeneration and metabolism, and it is effective in aiding in the treatment of burns. However, egg yolk oil is not suitable for making at home. Refining oil at home by yourself, high temperature will make the unsaturated fats oxidized, and at the same time, refining oil at high temperature is prone to produce carcinogenic substances such as benzo(a)pyrene. Egg yolk oil is not suitable as cooking oil. Egg yolk oil belongs to the oils and fats that are mainly saturated fatty acids, which contain a lot of cholesterol. The cholesterol content of an egg yolk is about 200mg, and it is best for adults not to consume more than 300mg of cholesterol a day.