It is best not to vaccinate cats with herpes virus in the early stages, because when cats first contract the herpes virus, they are relatively weak and may develop fever. It is best to wait until their physical condition is stable before vaccinating. Cats may have fever, cough, runny nose, sneezing, etc. when they are suffering from herpes virus, and they may be very weak. If a cat is vaccinated at this time, it may make the body even weaker and susceptible to infection with other viruses. Please be careful when cats have herpes. Observe the cat's condition and body temperature, clean foreign objects in the eyes and nose in time, keep them clean, and wait until the cat's body recovers before injecting.