This was developed for poison ivy, but my customers tell me they use it on all sorts of skin issues, including acne and boils. Hence the name change from Poison Ivy Remedy to Jewelweed Skin Remedy. But that is still the what it is most often used for. Jewelweed is a companion plant of poison ivy. Our product is loaded with organically grown jewelweed and stops poison ivy in its tracks. People ask me how to apply, and here is my method: every time you feel the itch, apply some. When it isn't itching, don't bother. The longest bout I had last summer was four days. It is truly a miracle!!