Some areas of your body – such as upper lips and bikini lines – are more sensitive than other places. These areas will most likely become redder and more swollen than areas like your lower legs. Hydration and your physical health will also affect your body’s ability to heal. As the size of the treatment area or the intensity of treatment increases, the risk of aggravating your skin and getting increased redness or swelling will also increase.

Skin covered with clothing is more likely to get chafed, which may cause infection without proper treatment.