Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Biography

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Rashes generally appear as part of an immune system response. The irritant, aggressor or allergen that triggers the response can be a bacteria, virus, fungus, chemical or, in some cases, simply an irritating substance, such as wool. Occasionally, rashes are indicators of an immune system malfunction, such as in the case of psoriasis, or a symptom of another underlying disease, as in the case of Lyme disease.

Psoriasis

Psoriasis is a chronic inflammatory skin condition that has an underlying genetic basis. It presents as a red rash with silvery scaly patches of skin that flake off. The name comes from the Latin word, "psora," which means "itch." 

 A psoriatic episode can be set off by certain triggers. Known triggers include injury to the skin, stress, infection, weather and lack of sunlight. Psoriasis often begins as a red spot on the skin that grows larger. As it grows, scales appear on the top of the rash. These break apart and shed in large quantities. If the scales are scraped off before they naturally shed, skin will bleed.

 According to the American Academy of Dermatology, psoriasis occurs because of a faulty immune response. Normally, when the immune system detects an invading substance in the skin, it initiates an immune response that includes inflammation. In a person with psoriasis, the immune response occurs without an invading substance being present. Because of the inflammation, the body begins replacing skin cells at too rapid a rate. Whereas normal cellular turnover takes about 30 days, after a triggered immune response in a psoriatic episode, new cell production goes into overdrive, producing new cells every three to four days, according to the American Academy of Dermatology. The buildup of skin cells appear as the scaly psoriasis rash.

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck

Reasons For Skin Rash Skin Rashes In Children On Face In Adults On Hands On Arms That Itch In Kids On Dogs On Chest On Neck