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Ask Dr. Michael Salkin Your Own Question
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Cat Veterinary
Satisfied Customers: 23851
Experience:  University of California at Davis graduate veterinarian with 44 years of experience.
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My cat got an allergy shot last week because he was licking

Customer Question

my cat got an allergy shot last week because he was licking excessively. Vet said allergies. seemed to solve the issue. 6 days later (last night) I noticed he was sneezing and appears to have a runny nose. Same today. Sniffles, sneezing etc.
Submitted: 4 months ago.
Category: Cat Veterinary
Expert:  Dr. Michael Salkin replied 4 months ago.

Sammy was likely to be a carrier of the feline herpesvirus (FHV-1) and the glucocorticosteroid allergy shot (methylprednisolone/DepoMedrol, usually) immunosuppressed him enough for the FHV-1 to come out of its carrier state and cause clinical symptoms of upper respiratory infection. Alternatively, Sammy picked up FHV-1 (or the bacteria Chamydophila or Mycoplasma) while at the vet hospital. In the great majority of cases, cats such as Sammy will remiss unaided within 1-3 weeks. I rarely treat these cats unless they become inappetent and dehydrated and require supplemental fluids and/or force feedings.

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