In the world more than 940 million people suffer from this life-threatening skin cancer and skin disease!

The number of patients suffering from skin cancer drastically increases all over the world. Skin cancer often occurs already in the childhood, and when it becomes a melanoma, the chance of surviving it is only 20%.

By 2040, the number of skin cancer patients may double.

It is a well-known fact that the prevalence of both malignant epithelial tumours, basal cell carcinoma, and actinic keratoses, which can be considered a premalignant condition, has recently been continuously increasing, mainly in older age groups with a history of even decades of chronic sun exposure. Although basal cell carcinomas grow slowly, they can cause significant destruction of the surrounding tissues, the epidermis, the dermis, the subcutis, or even deeper tissue structures such as muscles, cartilage and bones. Despite their slow, infiltrative growth, they rarely metastatize. Actinic keratoses can be regarded as obligate praecanceroses, can evolve into invasive squamous cell carcinomas  over  years or decades,  and can therefore result in significant  morbidity. Ulceration, crusting and desquamation  are frequently observed in basal cell carcinomas and actinic keratoses,  and appropriate  treatment  and conditioning of the lesions is therefore very important in order to avoid further traumas and possible local infections.