What Is The Dosage Antibiotics Given With Inflammation In Belly?

hi , my wife felt a very strong pain in her belly i rushed her to the hospital there they diagnozed here with 5 cm inflammation in here internal belly, there found a 5 cm bag full of bad blood, they used CT and all blood tests, they are treating her with antibiotics since 3 days they said she should stay 5-7 days under antibiotics in the hospital...advice please ?