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Updated on September 23rd, 2025
Pet's info: Cat | American Shorthair | Female | spayed | 2 years and 4 months old | 5 lbs
My cats have been on flea preventatives for 2 years (1st Revolution now Bravecto) w no issues. Last treatment was about 3 weeks ago. Today I found a flea in their bed and when killing it I saw blood. Lucy had an allergic reaction about a week ago but was at the vet and they did not see mites/fleas? Is it possible the Bravecto did not work? I just brushed them and did not see anything else. Could this been a random occurrence? should I treat them with something else?
1 Answer

Answered By Linda G, MS, DVM
Veterinarian
Published on January 31st, 2020