infection in tommy button after GB surgery

Hi there,I had removed GB week ago then DRs take stiches out only after 4 day after surgery,i had laparoscopic surgery..now after week i fell down and was in conscious in one day 8 times,because cannot take that pain,its like some knife or small needle its left in my tommy button,I had Ultrasonography done,it says there is left some fluid collection witch causing me pain doctor say and its infected,now im staying in hospital for few days,its really painful more than operation GB i had  300% sure...My belly button is swollen and hears too much...