This asymmetry suggests localized skin thickening, which is commonly caused by friction (a callus) or a fungal infection like moccasin-type athlete's foot. To soften the tough, white skin, you can use a cream containing a keratolytic agent like urea (20 to 40 percent) or salicylic acid. If a fungal infection is possible, an over-the-counter antifungal cream such as clotrimazole or terbinafine may help. Apply these after gently washing and thoroughly drying your foot. Please avoid cutting the thick skin yourself. I recommend seeing a podiatrist or primary care doctor for a proper evaluation to ensure you use the most effective treatment.

Cotaryl Cream contains emollient and keratolytic ingredients that help soften dry, rough, and scaly skin, providing symptomatic relief in conditions like X-linked ichthyosis by improving skin hydration and reducing scaling. However, it does not cure the underlying genetic condition and requires regular, long-term use alongside other moisturisers, as advised by a dermatologist. Skin darkening is not a common major effect with Cotaryl, but irritation or dryness can occur in some people, depending on skin sensitivity and frequency of use. Since X-linked ichthyosis often requires a tailored skincare plan (sometimes combining urea, lactic acid, or ceramide-based creams), it is better to confirm the best option with a dermatologist, especially if you have already experienced side effects with previous treatment.

For dry and rough skin in the buttocks area, look for moisturizers containing urea, lactic acid, or salicylic acid. These ingredients gently exfoliate dead skin cells to restore smoothness. Creams containing ceramides and hyaluronic acid are also excellent for rebuilding the skin barrier and locking in moisture. For best results, apply the cream immediately after showering while your skin is still damp. Avoid harsh, scented soaps, and wear loose, breathable cotton clothing to minimize friction and irritation. If the dryness persists or is accompanied by severe itching or redness, please consult a dermatologist for a tailored evaluation.