Treatment may be targeted to individual Sunspots, or to a whole ‘field’ such as the face, scalp, forearm and/or back of hands. Treatment of a whole field will reduce the risk of solar keratosis appearing in those adjacent areas in the future. When in doubt, it’s generally best to treat a whole field.
Have you seen someone walking around with a crusty red nose, cheeks, forehead and/or temples? Most likely they are having field treatment for Solar Keratosis.
There are over ten different treatment options available. To cut to the chase, the most widely used treatments are efudix and cryotherapy.
Many regular attendees of a skin cancer clinic are familiar with Cryotherapy (freezing). The issue with cyotherapy is that it does not treat a whole field. Efudix cream, on the other hand, does treat a field but usually involves several weeks of red and inflamed skin. Aldara and Picato gel are limited by the amount of skin that can be treated at a time. None of these situations are ideal which is the reason why people often choose PDT. However, PDT is still expensive.