The reason why the treatment takes time to work is, that the treatment actually prevents new breakouts. It does not target the existing blemishes, which can heal unaided. As anyone with acne knows, new blemishes are constantly appearing. As a result, the treatment is ongoing. While waiting for the treatment to work, it can be tempting to squeeze acne lesions to get rid of them. However, dermatologists do not recommend this. Picking, scratching, popping, and squeezing tend to make it worse and may cause scars. The medication in the plan may be topical (applied to the skin) or systematic (works inside the body). Some patients receive a plan that combines both of treatments and another type of treatment uses laser and light-based technologies which continue to be researched for their effects on mild to moderate acne cases.