I have a beer with an infection that gives a sour taste and an after taste of plastic when you belch. What can I do now? Just drink it myself?
Here is a great reference to off flavors in beer: http://www.howtobrew.com/section4/chapter21-2.html
As for what to do with the beer...I think we all get in to this hobby because we are tired of drinking crap beer...so a beer that doesnt meet your standards and has off flavors should just be thrown away!
Keg it, chill it, them decide what to do... Recently legged an ipa that looked like Satan was growing in it, legged it, stucknit in the fridge.... Tastes absolutely fine now.
brewing lots, rather not keep it all updated here