Bring your MS to any groomer and ask them pluck the ear canal hair for you.
Use ear cleaner to clean your MS weekly after bathing. You can try using this ear cleaner brand call #1 All System. Put few drop of the ear cleaner into the ear and massage it about 1 min and then use a cotton butt to clean the ear just around the ear canal area. Make sure don't poke to deep in the ear ya
Hope this help.