My daughter went thru a hernia surgery at 2 weeks of age too. I was as lost as you are and upset thinking why must this happen to my daughter. The surgery eventually took only 30min, recovery after was also pretty manageable. Wound will be plastered with waterproof bandage , painkiller just give as prescribed. I didn’t like the idea of feeding paracetamol to my newborn but pls don’t repeat my mistake , I tried to drag the time between the medication feeds & I think she was in pain Cus she started to fuss