Vitamin A cream is a topical preparation made from a derivative of vitamin A. It has some of the therapeutic effects of vitamin A, but also has the side effects of vitamin A. Therefore, this cream should not be used for a long time. If vitamin A cream is used for a long time, it can produce certain hormone-like side effects on the skin, which usually may cause certain atrophy of the skin, as well as certain capillary dilation, accompanied by certain secondary bacterial or fungal infections. At the same time, vitamin A cream has a certain anti-proliferative effect, so for hypertrophic skin disease, it can be extended for a period of time, but in between, it is necessary to use some other types of topical creams, so as to effectively reduce the side effects of vitamin A cream.