Retinoic acid cream usually takes about 1-2 weeks to take effect, and the exact time varies according to individual cases.
Retinoic acid cream is mainly used as an adjunctive treatment for acne vulgaris, lichen planus, lichen planus, follicular keratosis, mucous membrane leukoplakia, and psoriasis. Usually, topical application of retinoic acid cream alone is generally not effective and needs to be accompanied by oral medication, most of which can be effective in 1-2 weeks. When used for keratosis, such as seborrheic keratosis or flat warts, the effect time is relatively longer, with some of them taking about 1 month to take effect. If the keratosis is significant, the effect time is longer, even up to several months. When using retinoic acid cream, you may experience adverse reactions such as dryness, redness, peeling or burning sensation, so you should closely observe the local skin condition.
In addition, vitamin A cream is not recommended for large areas, avoid using cosmetics, detergents and other irritants during the use of the drug to avoid aggravating the condition. Patients also need to avoid sun exposure as much as possible during the treatment process, and good sun protection or shade measures are recommended.