I noticed my duck (of about 12 weeks old give or take) limping two days ago. It mainly stays in the pond and swims away when we come close, same for the other three.... well today my boyfriend jumped in to retrieve the duck so that we could take a closer look. I noticed a fungus like substance on the web of its foot; almost like Psoriasis on a human... it's not swollen in any way but it does have a minor scratch on the middle toe. I searched up bumble foot and pictures of it, it doesn't look similar to it at all. Please help me diagnose this poor baby... we put Neosporin on the foot and we are keeping her in the bath tub until further notice.