Hernia after c section. Should we go?

My wife had a c section on 10th may, next day we heard some sound from abdomen like some water flushing from pipe next I saw some bulge like intestine shape in abdomen right upper side from navel around 2 to 3 centimetres, we asked the doctor she said after surgery it happens and whole stomach get loose so it will be alright, we got discharge on 14th may, on 21st may she called us to check stitches and after check up she said some hernia is developed after c section due to weak abdomen wall and you have to check with a surgeon for this after three month you can go for a surgery for hernia till the recovery time you should wear a belt and avoid any sort of stomach pressure, she said it is complication happens after c section, queries :- Is it a emergency for us should we wait 3 months till recovery from c section Is it a surgical mistake done by doctors Is it possible to heal by its own or with some medication Is laparoscopic surgery possible in this case Where should we go