Ami Norman
Junior Guinea Pig
My go to fungal treatment is a dip called Imaverol, which is non-prescription, gentle on the skin and very effective. You get it in a concentrated form and dilute it for use. As it is a dip you don't wash it off, so it continues to work between treatments, which are weekly for three weeks. I have had great success, and you treat the whole animal, so any undiscovered spots are treated too.