After having a ruptured ear drum some years back due to an infection I would warn people about shoving buds in there ear. When my GP was cleaning up my ear to examine it he said he pulled out some cotton wool - a possible cause for the infection. The irony was he was cleaning up my ear with cotton buds at the time.
But still I would not recommend having your ear drum explode due to infection, not a plesant experience. Pain, loss of hearing for over six weeks (I was lucky, no permanent damage) and lots of goo, some coming out of you ear, some going down your eustachian tube into your throat.