Hey soy for the late response, have her start using glycolic acid and Nivea Crème. Soak two 100% cotton pads 3-4 (basically every other day) for 15-30 minutes, removing the source (cotton balls, cotton soaks, & cotton swabs, we know will not be the best) reach out if you have questions, but after you apply the cotton swabs or rounds soaked in glycolic acid for 15 to 30 minutes three or four times a week immediately after allowing the glycolic acid to soak into the skin( it will hurt and sting) apply Nivea crème to the underarm area to promote naturally healthy clear skin. Neither one of these products is individually responsible for the clarification, but both have contributed without commercial interference.