June 13, 2014 5:00 PM

Jack Haskins: Flea treatments can be problematic

Dear Old Trainer: I applied Frontline to Rip, my Weimaraner, and by the end of the day he was scratching like mad. The next day he had a red spot on his chest and scratched constantly. I shampooed him several times to get the product off and he stopped scratching. Are flea products that you apply to the skin of a dog safe?

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