hi. like the title says, i spilled a little ketchup in the ear speaker of my iphone 4. of course i cleaned the ketchup out and when i got home i tried to clean it with rubbing alcohol at the end of a q-tip. but still at this point it's really really hard to hear anyone on the other end. so i'm pretty sure there's little tiny pieces of ketchup residue within the speaker. has anyone had a similar problem or have any suggestions as to what i should do? thank you in advance!