Other types of treatment include freezing the skin or treating the skin with X-rays. These occur on sunshine exposed areas and are related to outdoor exposure. Unlike basal cell carcinomas which are often smooth and domed, squamous cell carcinomas are usually scaly and more irregular. These are scaley patches of different sizes appearing on skin which has been exposed to excess sunshine. A number of them - if left untreated will progress into squamous cell carcinomas.
Treatment is by cryotherapy or some kind of surgery.
This refers to a situation where the sufferer is unduly sensitive to sunshine and can come out in either a red rash or even a severe eczema only at the sites of sunshine exposure. For example, where the skin is protected by layers of underwear, it is common for the underlying skin to be completely normal but exposed skin to be very severely infected. Occasionally, skin surface creams can also cause photosensitivity and some patients even suffer this reaction from sunscreens. This term refers to a blemish on the skin varying between pink and brown in color. Naevi or moles, usually appear between the ages of about four and thirty years.