ok so one of my ducks was limping this morning and I separated her thinking it was the result of her getting stepped on by another larger duck. I realized the leg she is raising, that foot has bumble foot. I am unable to go to the store until morning. If I soak it with Epsom salt and cut it off, can I apply a topical antibiotic just like mupirocin until the morning? Should I leave it and wait? I feel bad she can barely move around. What should I do?