Ascaris, under the premise of confirming that there is no parvovirus and canine distemper, you can consider expelling worms first and then vaccinating. If the dog is healthy and everything is fine, it can be vaccinated first and then repelled.
Insect repellent, it is recommended to choose safe and efficient insect repellent such as Ciba and Bayer. In three days, you can start vaccination. It is best to choose imported vaccines with high protection rate, such as Tianxiang. A vaccination process is three shots, usually one shot every 15 days or 2 1 day. All three shots were given, and another shot of rabies vaccine was given a week later. So the puppy's first vaccine is ready.
In the future, you can strengthen one needle of Interway and one needle of rabies at the same time every year.
Puppies are repelled once every three months for one year, and adult dogs over one year are repelled once every six months to one year.
Do not eat. I don't know what food you have fed. I suggest feeding only soft dog food first. Sometimes you refuse to eat in different environments. Clean drinking water must be fully supplied.