Can i drink my beer? EMERGENCY?

I put beer in a cooler of ice about five or six days ago and forgot about it. I opened the cooler today and there was a fairly bad odor, and little black/brown specs of what i assume to be mold. The beer cans also had this smell. I rinsed everything with hydrogen peroxide (the only disinfectant i have available atm) and washed with dish soap and water. I mostly got rid of the smell, but not completely. Is the cooler safe to use again? IS THE BEER SAFE TO DRINK? help this is urgent!