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What is colour and size of the rash?
Is it itching continuously?
What are the drugs/ointments you have taken yet?
Have you consulted any doctor yet?
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There are a numerous conditions which can cause such altered skin colour:
The common ones are:
It seems that you are having some sort of fungal infection affection the region of your calf. The common fungal infection which can be present on the body are Tinea corporis, tinea cruris, tinea versicolor,etc.
The fungal lessions are typically present with symptoms of itch,redness,scaly lessions.
First you should get the diagnosis done by :
(a) A potassium hydroxide (KOH) examination of skin scrapings .
(b) A fungal culture is often used as an adjunct to KOH for diagnosis.
(c) skin biopsy with a hematoxylin and eosin staining of tinea corporis demonstrates spongiosis, parakeratosis, and a superficial inflammatory infiltrate.
These following agents inhibit the synthesis of ergosterol, a major fungal cell membrane sterol and thereby help in relieving of the symptoms and the disease:
1)The topical azoles (eg, econazole, ketoconazole, clotrimazole, miconazole, oxiconazole, sulconazole, sertaconazole) inhibit the enzyme lanosterol 14-alpha-demethylase, a cytochrome P-450-dependent enzyme that converts lanosterol to ergosterol. Inhibition of this enzyme results in unstable fungal cell membranes and causes membrane leakage. The weakened dermatophyte is unable to reproduce and is slowly killed by fungistatic action.
2)Allylamines (eg, naftifine, terbinafine) and the related benzylamine butenafine inhibit squalene epoxidase, which converts squalene to ergosterol. Inhibition of this enzyme causes squalene, a substance toxic to fungal cells, to accumulate intracellularly and leads to rapid cell death
3)Ciclopirox olamine is a topical fungicidal agent
4)A low-to-medium potency topical corticosteroid can be added to the topical antifungal regimen to relieve symptoms. The steroid can provide rapid relief from the inflammatory component of the infection, but the steroid should only be applied for the first few days of treatment.
5) systemic therapy is use of ketoconazole ,fluconazole tablets and should be used only after consulting the doctor .
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The topical antifungal ointments are easily available as OTC medicines like lotrimin,lotrisone,etc. which you can use and apply locally on the site.
This will help you in relieving the symptoms of itching though the complete lession may take upto 3 weeks to vanish off.
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