It is normal for the clitoris to be really sensitive after an orgasm.

you can do a few things.
1) get your b/f to only BARELY touch your clitoris. if he rubs it hard or too long, it will hurt.
2) if his hands are rough, this can be the cause too. work with him to soften his hands by using lotion, etc. a good idea too to make sure that he keeps his nails trimmed etc to decrease the risk of nicking you.
3) sometimes just the grain of a man's fingerprint is so much more coarse than ours is. this can multiply the effect of even a soft touch.

deteragram is right. the clitoris is often times way too sensitive to be rubbed immediately after an orgasm.

hope this is helpful.
jasmine