There is no certain rule on how long it takes to get well and there are individual differences in how long it takes to heal pruritus of the lower body skin, also known as pruritus vulvae. The length of time it takes to heal is mainly related to the cause of pruritus and the patient’s response to treatment. 1. Causes of pruritus: the cause of pruritus vulvae is not yet clear, it may be related to dryness (such as long-term use of alkaline detergent to wash the vulva, etc.), infection (such as trichomoniasis, gonorrhea, etc.), systemic diseases (such as diabetes mellitus, uremia, etc.) and so on. If the triggers are not removed or the primary disease is not treated in time, pruritus vulvae will persist. 2. Patient’s response to treatment: Oral antihistamines (such as loratadine, cetirizine, etc.) are often taken for pruritus vulvae, as well as localized phototherapy. Due to individual differences, each patient’s response to medication or phototherapy is different, so the time for symptoms to improve is also different. It is recommended that patients with pruritus vulvae go to the dermatology department or venereal disease department of a regular hospital for consultation, after clarifying the cause of the disease, and then standardize the treatment under the guidance of the doctor, to avoid the adverse reactions caused by self-medication. Drugs need to be used in accordance with medical advice.