After the cat is vaccinated, it is best for the owner to observe it in the hospital for 20-30 minutes, because some cats will have allergic reactions, which in severe cases may lead to difficulty breathing and facial swelling, which requires timely refraction desensitization. Needle. And it is best to bathe the cat 2-3 weeks after vaccination, because it takes 2-3 weeks for the vaccine to gradually form antibodies. If you bathe too early, it will easily cause the cat to catch cold or be frightened, and suffer from diseases. .