Yes looks like a candida rash, but it also could be a rash from allergies.
Not sure what could be done though since everyone has different skin, for me a similar rash will show up from time to time on my back but i just wait for it to subside.
It could be those meds given to you that caused this reaction, i agree with your doc to come off those meds.
Sometimes the skin gets worse before it gets better.
Not much helps here, but i hope you will get better soon.