Drink a 2 beers that were outside in a cooler. they sat out there for about a month. i threw up and had a rash on my face. should i be worried?

Reaction to beer: Don't worry, but don't do that again. Normally beer can be maintained at room temperature for long periods (6 months to a year) without any problem. Some factors that could cause a reaction include: leaks or opened containers, excessive heat, just the bad luck of a bad batch of beer, even possible fungus or mold that grew on the bottle or can.