Why do my face freckles completely fade away during the dark cold winter months?

Why do my face freckles completely fade away during the dark cold winter months?

1. Introduction Face freckles fade completely during the dark winter months because they are entirely dependent on continuous exposure to ultraviolet radiation to maintain their pigment. Without the stimulating effect of summer sunlight, the melanocytes in these specific areas stop overproducing melanin, and the existing pigment naturally degrades as the skin cells undergo their standard … Read more

Why do my severe sunburns itch so uncontrollably that I literally want to scream?

Why do my severe sunburns itch so uncontrollably that I literally want to scream?

1. Introduction The uncontrollable itch of a severe sunburn is caused by acute ultraviolet radiation damage to the superficial sensory nerve endings in the skin. As the body attempts to repair this widespread tissue injury, a flood of inflammatory mediators, including histamine and prostaglandins, is released into the dermis. This chemical surge overwhelms the nervous … Read more