Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Before running into final conclusions, I d like to ask if: - you have changed to any detergent or cosmetic product used recently? - apart bactroban cream, are you taking any other medication? The main idea is to rule out any external allergen before admitting that staph infection might circulate in your blood or can get your foot infected. I advise to keep the area well clean. Apply anti-itching cream containing anti-histamine you find over the counter. Take oral anti-histamine like Cetirizine. If the itching will persist, and the legs will get red, should consult with your doctor as soon as possible. Hope I have answered your query. Let me know if I can assist you further.