Some therapies may cause spots and redness, especially in the first few weeks of treatment. These lesions are usually located on the face, scalp, mid-back and chest. They may be itchy, accompanied by painful burning sensations or become infected. To avoid the risk of scarring, avoid scrubbing or messing with the lesions in any other way. As soon as the first spots and signs of redness appear, you should limit the risk of bacterial proliferation by using a copper-zinc based drying cream or lotion.