My sister has very sensitive skin&gets acne. Shes15 and needs an acne cleanser or regimen for sens. Skin. What is best for her? Dr prescription and she broke out

See a dermatologist. There are various ways to help her. A skin specialist can help her find the best combination of prescription and otc products.
Neutrogena acne wash. I like neutrogena acne wash for my acne patients with sensitive skin. It is available without a prescription. It contains 2% salicylic acid which is not too drying. It takes a whole monthe for most topical agents to work, so be patient. If not better in a month, i would see a dermatologist. I hope this helps. Lana long, M.D.