Hello, Your daughters symptoms are of pruritus ani. She is suggested to get clinically examined by a GP, get stool examination done. The treating doctor may require skin specimens and perform tests to screen for bacterial or other infections. Other skin areas may be examined if she has a history of skin symptoms. She can apply zinc oxide or hydrocortisone ointment topically to prevent itching and avoid scratching. She may need to take a course of medicines to de-worm if the stool shows parasites or worms. She needs to take care of her hygiene. She should clean the bowel area properly and keep it dry. For dry, crusty and flaky skin on labia and anus you need to maintain good hygiene. Clean the area with water, no soap. Avoid using medicated powders, perfumed sprays or deodorants on the anal and vulval area. Never rub, scrub or scratch. Get a stool test done to detect any worm or parasite so that you can take de-worming medicines. Get STD tests done to stay on the safer side. If tests are positive then antibiotics and antivirals can be started. Take vitamin E (Evion - 400), for 15 days for better lubrication. Get your rectal problems (hemorrhoids, fissures or fistulas) or skin problems (psoriasis, eczema or seborrhea) clinically examined. void feminine hygiene sprays and deodorants for the area around the anus or genitals. Do not use perfumed talcum powders, scented skin cleansers and perfumed soaps. Anal itch also can be triggered by over-the-counter medications (suppositories, creams, ointments) intended to treat anal problems. Be careful what you use. Avoid sex for a couple of days. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician