Paid for a script for medication I have been giving my child

We went to Medicross Edenvale with my 8 year old who has been suffering with stomach cramps, I give the dr the rundown with the medication we have tried at home. Hydrospasmol and Buscopan. Neither is working. He in turn gives me a script for Buscopan. After I just told him it is not helping. So politely I ask for how long can I give it to him. The answer was until he feels better. Well 24 hours since I started giving it to him and it is not getting better its getting worse. So I guess I just paid R722 for nothing. I will have to go see another dr to actually get advise and meds that will work. I will never go see Dr Lichtenstein there ever again.