Herpes is a viral infectious disease caused by a member of the Herpesviridae family, the herpes simplex virus. These are viruses that are able to survive for a long time in an infected organism. A distinction is made between herpes simplex virus-1, which causes herpes of the lip, and herpes simplex-2, which causes genital herpes. The latter is localised on the vulva, in the vagina or, more rarely, on the cervix. Genital herpes is becoming increasingly important in pregnant women because of possible infection of the foetus.

Herpes of the lip is first manifested by pain, itching or burning of the part of the lip on which the red pimple appears. Over time, this turns into a blister with clear contents and a large amount of virus, and therefore, when it ruptures, the person becomes highly infectious. Once it ruptures, it turns into a brownish-red scab which usually falls off on its own within 10 days. It is not recommended to scrape it off because of possible scarring. The lip ulcer is accompanied by swelling of the cervical lymph nodes. Genital herpes has the same clinical picture, but the inguinal lymph nodes are swollen.

Acne (medically known as acne vulgaris) is the most common chronic skin condition and also the most common disease affecting young people, especially during puberty. It is an inflammatory disease of the sebaceous glands and hair follicles in the so-called seborrheic areas. These are areas of skin with increased sebum production, primarily the face, shoulders, upper chest, and back. This unpleasant condition called acne can be triggered by various causes, and multiple factors contribute to its development. Generally, every young person, regardless of gender, between the ages of 13 and 20, experiences acne due to hormonal changes occurring during this period. For most people, acne disappears in adulthood. However, for some, acne problems may persist even after puberty and can continue into adulthood. In some cases, it even occurs in young children.