Despite constant progress in the field, cancer treatment continues to cause many adverse symptoms. This particularly applies to radiotherapy which, in addition to general symptoms (malaise), causes significant damage to the skin directly exposed to harmful radiation. The skin in the irradiated area becomes dry, reddened and sensitive. Lack of proper skin care in the irradiated area may lead to intensified post-irradiation symptoms and inhibit the healing process. Nevertheless, you have to remember that you must consult your doctor before you start using any cosmetic product during radiotherapy.