Give yourself a couple days rest, and next time you have sex maybe start with a little lubrication to make it easier. In the mean time, make sure you wear cotton panties and try to avoid chemicals or harsh soaps around your vagina. It's quite painful, but it does go away on it's own. Just baby it a little and hopefully in few days you'll be better.
gosh - never have dry sex you can bleed as a result! always use lube. for now you can try putting some organic coconut oil up there to soothe the inflamed tissues.