Friday, November 27, 2009

eczema n tinea versiclor

1.2.3.5...tinea vericolor n 4 eczema






The term eczema is broadly applied to a range of persistent skin conditions. These include dryness and recurring skin rashes that are characterized by one or more of these symptoms: redness, skin edema (swelling), itching and dryness, crusting, flaking, blistering, cracking, oozing, or bleeding. Areas of temporary skin discoloration may appear and are sometimes due to healed lesions, although scarring up is rare. In contrast to psoriasis, eczema is often likely to be found on the flexor aspect of joints.

Dermatitis is often treated with corticosteroids. They do not cure eczema, but are highly effective in controlling or suppressing symptoms in most cases.[9] For mild-moderate eczema a weak steroid may be used (e.g. hydrocortisone or desonide), whilst more severe cases require a higher-potency steroid (e.g. clobetasol propionate, fluocinonide). Medium-potency corticosteroids such as clobetasone butyrate (Eumovate), Betamethasone Valerate (Betnovate) or triamcinolone are also available. Generally medical practitioners will prescribe the less potent ones first before trying the more potent ones. In many countries, weak steroids can be purchased 'over the counter' (e.g., hydrocortisone in UK, United States, Germany, Czech Republic, Australia, Iceland), while the more potent ones require a prescription.
[edit] Side effects

Prolonged use of topical corticosteroids is thought to increase the risk of possible side effects, the most common of which is the skin becoming thin and fragile (atrophy).[10] Because of this, if used on the face or other delicate skin, only a low-strength steroid should be used. Additionally, high-strength steroids used over large areas, or under occlusion, may be significantly absorbed into the body, causing hypothalamic-pituitary-adrenal axis suppression (HPA axis suppression).[11] Finally by their immunosuppressive action they can, if used without antibiotics or antifungal drugs, lead to some skin infections (fungal or bacterial). Care must be taken to avoid the eyes, as topical corticosteroids applied to the eye can cause glaucoma [12] or cataracts.

Tinea versicolor, pityriasis versicolor or haole rot[1] is a common skin infection that was widely believed to be caused by the yeast Malassezia furfur[
Generally oval or irregularly-shaped spots of 1/4 to 1 inch (0.6 to 2.5 cm) in diameter, often merging together to form a larger patch

* Topical antifungal medications - containing either 2.5% selenium sulfide (Selsun shampoo in UK, Selsun Blue works for some people but not all because it only contains 1% of sulfur (Nizoral ointment and shampoo) applied to dry skin and washed off after 10 minutes, repeated daily for 2 weeks.[12]. Ciclopirox (Ciclopirox olamine) is an alternative treatment to ketoconazole as it suppresses growth of the yeast Malassezia furfur. Initial results show similar efficacy to ketoconazole with a relative increase in subjective symptom relief due to its inherent anti-inflammatory properties.[13] Other topical antifungal agents such as clotrimazole, miconazole or terbinafine are less widely recommended[citation needed]. Additionally, hydrogen peroxide has been known to lessen symptoms, and on certain occasions, remove the problem.[citation needed] Clotrimazole (1%) is also used combined with selenium sulfide (2.5%) (Candid-TV).
Generally oval or irregularly-shaped spots of 1/4 to 1 inch (0.6 to 2.5 cm) in diameter, often merging together to form a larger patch.These spots commonly affect the back, underarm, upper arm, chest, lower legs, and neck.
* Oral antifungal prescription-only medications include 400 mg of ketoconazole or fluconazole in a single dose, or ketoconazole 200 mg daily for 7 days, or itraconazole[14][15] 400 mg daily for 3–7 days. The single-dose regimens, or pulse therapy regimes, can be made more effective by having the patient exercise 1–2 hours after the dose, to induce sweating. The sweat is allowed to evaporate, and showering is delayed for a day, leaving a film of the medication on the skin. [16]

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