I agree with what everyone else said - that his ears were hurting and he wasn't thinking straight!
My cocker spaniel used to get ear infections all the time, and my mom couldn't deal with it. So I did all of the ear cleaning. One thing that I found was that cotton was gentler and kinder to her than paper towels. Paper towels are often rougher and noiser, whereas cotton balls or squares are very soft. Just be gentle, but also keep your willpower!
As for the lump, I agree with Carrie that it is in an unusual spot for anything serious. It probably is a cyst of some type.. BUT TALK TO YOUR VET!