My dog still has fleas after Comfortis. Why is she still scratching?

Question

I have a question regarding comforties My dog hasn't stopped scratching after I have her the medication, do you think I should try something else She still has fleas. Pet's info: Dog | Shih Tzu | Female | unspayed | 3 years and 1 month old | 13 lbs

Lauren Kennedy, DVM · Accepted Answer

Comfortis is a great product and should start killing fleas within 30 minutes. If you are still seeing fleas there are a few things to consider. First, make sure you give the Comfortis on a full stomach and make sure the dog keeps it down (sometimes dogs vomit after taking it). There are also probably fleas in the environment/home. I would recommend vacuuming all carpeted areas in your house and washing all of the pet's bedding. Even with the best flea control it can take up to 2-3 months to get the flea problem under control. Make sure you treat all the other pets in the household as well

My dog still has fleas after Comfortis. Why is she still scratching?

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