Review of Arthur’s rain rot / rain scald using my tried method of iodine and mouthwash solution

The iodine and mouthwash kill the bacteria and other bugs causing the rain scald. His back right leg is clear. The back left leg needed more treatment.
I also use an anti dandruff shampoo to treat rain scald aka rain rot aka mud fever. Except I do so sparingly as it strips the natural oils from the skin and coat.