Betamethasone valerate and gentamicin sulfate spray indicated for the treatment, in dogs, of superficial skin lesions infected by the bacteria: Alcaligenes sp., Citrobacter sp., Klebsiella sp., Pseudomonas aeruginosa, indole positive and negative Proteus sp., Escherichia coli, Enterobacter sp., Staphylococcus sp., and Streptococcus sp. which are susceptible to gentamicin.