I've googled this but I'm not getting very far! 
I woke up today with a sore ear. Its under the rim of my ear where it joins my face, you know the little foldy bit? Above your tragus? Sorry I have absolutely no idea what its called. It felt really scratchy, so I wiped a cotton bud in there and there was debris, but it was really sharp and felt like ground up glass in my ear. The debris comes back within an hour or two. It's also a bit wet there .
I've had it a couple of times before, always in the same ear. Any ideas how would be best to treat it? Don't know if I should put cream on it or even do anything to it because its fecking sore!