For a skin infection with itching and open wounds, it is important to treat both the infection and irritation safely. First, gently clean the affected areas with mild soap and water. For the wounds, applying a generic topical antibiotic ointment like mupirocin or bacitracin twice daily can help prevent or treat bacterial infection. To relieve the itching, an oral antihistamine like cetirizine or loratadine is safer than applying creams directly to open wounds. Please avoid scratching to prevent further infection. If you notice spreading redness, warmth, or if it doesn't improve in a few days, please consult a doctor for a personalized evaluation.