Itching and swelling of the skin at the vaginal opening

Itching and swelling of the skin around the vaginal opening are usually normal, but may also be caused by local allergies, vulvitis, or other conditions. It is important to seek timely medical evaluation and, once the cause is identified, relieve discomfort through general measures or medication as appropriate. The specific causes are analyzed as follows:

1. Normal phenomenon

This is commonly seen in women after sexual intercourse. Frequent sexual activity within a short period can lead to friction and stimulation, causing congestion of the vaginal walls and resulting in redness, swelling, and pain at the vaginal opening. It is important to maintain good local hygiene and avoid sexual intercourse for a short time.

2. Local allergy

If sanitary pads, topical hygiene products, or condoms have been used recently, prolonged exposure may trigger a local allergic reaction, leading to symptoms such as swelling and itching. Under a doctor's guidance, medications such as cyproheptadine hydrochloride tablets, hydrocortisone butyrate cream, or compound acetic acid dexamethasone cream may be applied locally to relieve symptoms.

3. Vulvitis

This refers to inflammation of the skin or mucous membranes of the vulva, primarily caused by pathogen invasion or physical or chemical factors. When bacteria or viruses irritate the vulvar area, an inflammatory response may occur, leading to symptoms such as itching, redness, swelling, and pain. As directed by a physician, sitz baths with povidone-iodine solution and topical application of erythromycin ointment may be helpful.

In addition to the above causes, similar symptoms may also result from vaginitis, genital herpes, genital warts, or other conditions. Patients are advised to seek prompt medical evaluation to determine the underlying cause under a doctor’s guidance and receive targeted treatment accordingly.