Shaving rash on legs?

This morning i shaved my legs with a disposable razor and just water, no soap. i didnt think it would be a big deal and nothing would happen but after i shaved, i got red bumps all over my shins that inflamed and i got red razor bumps all over my legs. they hurt sooo bad and burn and they are veryy dry now. i cant put lotion on because it burns even more. i just want them to go awayy they hurt so much! helppp how can i get rid of them or make them not hurtt?