@indigomoth - You want to be careful about washing your ears though. The skin there is very delicate and you might end up causing more problems than you solve.
Blisters can also occur when you damage the skin slightly and bacteria is allowed into it, so that's a risk as well.
And if someone has a mild skin condition, washing away protective oils can actually make it worse.
I guess my point is that I would be very careful washing my ears with ordinary soap. If you wouldn't use it on your face, you probably shouldn't use it with your ears. Maybe use a more delicate cleanser, or maybe just wipe them occasionally with a makeup removing towel. That should do more than enough to prevent blisters and pimples, unless there is some other reason for them happening.