What is taking antibiotics for?
You must syringe feed either mushed pellets or a recovery feed to replace his food intake. This will need to be done every two hours if he isn’t eating anything for himself. Feed as much as he will twke per sitting and as many sittings as is necessary to keep his weight stable. This is quite literally a life saving and essential step for a poorly piggy.
Antibiotics can affect the gut as they can also kill of the good gut bacteria as well as the bad illness causing bacteria. It’s recommended to give a probiotic, or use poop soup, a few times a day when a piggy is on antibiotics.
If you are going to use poop soup the the poops must be from a healthy companion and be only just use produced poops.
It is explained in this guide
Probiotics, Recovery Foods And Vitamin C: Overview With Product Links