What Is The Treatment For Pain In Left Side Of The Stomach?

hi i have a 13 year old daughter , i took to the doctors yesterday he gave her antibiotics and some codeine phosate 15 mg they didnt make any difference for the pain phoned the doctors a gain today and he gave me some 10 mg buscopan tablets,her symptons are she has a pain in her left hand side of tummy she has been sick, she was sick first since yesterday when shes been havinga drink shes been sick afterthat as well, shes had all her tablets for today