A. This rash may be the result of a parasite infection such as mites or hookworm and would require specific treatment for same. Bacterial and yeast/fungal infections can also present on legs and I recommend a full check up and skin scrapes to diagnose exactly what is going on and to identify which specific treatments are required. Hydrocortisone cream will only reduce inflammation and is appropriate for allergic rashes and to provide relief alongside other treatments but when it is not working it is important to diagnose accurately before the condition progresses
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