Canker sore of cold sore?

i have a strange sore on my lip. well its acutally where your lips touch together so you can barely see it. it hurts very bad and it has a red halo around it with a white middle which to me sounds like a canker sore. but in the morning when i wake up its dryed out and scabed over, similar to a cold sore. how do i... show more i have a strange sore on my lip. well its acutally where your lips touch together so you can barely see it. it hurts very bad and it has a red halo around it with a white middle which to me sounds like a canker sore. but in the morning when i wake up its dryed out and scabed over, similar to a cold sore. how do i know without going to the doctor, because i really dont have the money for that :) someone please help
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