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Long-wavelength UV is more prevalent, but each milliwatt at 295 nm produces almost 100 times more sunburn than at 315 nm. Skin peeling on the upper arm as a result of sunburn – the destruction of lower layers of the epidermis causes rapid loss of the top layers Tanning of the forearm (visible darkening of the skin) after extended sun exposure
The sunburn draws fluid to the skin, away from the rest of the body, so drinking extra water can help avoid dehydration. • Protecting sunburned skin. While healing, avoid re-exposing burned skin ...
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A sunburn cell is a keratinocyte with a pyknotic nucleus and eosinophilic cytoplasm that appears after exposure to UVC or UVB radiation or UVA in the presence of psoralens. It shows premature and abnormal keratinization, and has been described as an example of apoptosis. [33] [34]
Scale forms on the skin surface in various disease settings, and is the result of abnormal desquamation. In pathologic desquamation, such as that seen in X-linked ichthyosis, the stratum corneum becomes thicker (hyperkeratosis), imparting a "dry" or scaly appearance to the skin, and instead of detaching as single cells, corneocytes are shed in clusters, which forms visible scales. [2]
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Practices that enhance appearance include the use of cosmetics, botulinum, exfoliation, fillers, laser resurfacing, microdermabrasion, peels, retinol therapy, [1] and ultrasonic skin treatment. [2] Skin care is a routine daily procedure in many settings, such as skin that is either too dry or too moist, and prevention of dermatitis and ...