Surolan is used to treat otitis externa in dogs and cats and dermatitis caused by: yeast and fungi (Microsporumspp., Trichophyton spp., Candida spp., Malassezia pachydermatis); gram-positive bacteria (Staphylococcus spp., Streptococcus spp.); gram-negative bacteria (Pseudomonas spp., Escherichia coli); ear mites (Otodectes cynotis).