Many people are now afraid of the sun and think it causes skin cancer. That is not totally correct. There may be an increased risk for skin cancer in people who have had a severe burn, especially when they were younger. This does not apply for the casual sunbather who protects himself after good sun exposure of 20 minutes between 10 and 2. In fact, vitamin D DEFICIENCY is associated with skin cancer. Vitamin D can help skin issues like psoriasis or pityriasis rosea and is sometimes prescribed in a a cream for those conditions. Vitamin D can help prevent sunburns.