Is this razor burn? heeelp!?

i just walked into the bathroom and my arms are red .. i shave my arms every few days, so this isn't my first time shaving them ... it's all red and hurts/burns like crazy! some of it is shaped as lines (looks like scratches) ... i use a dry razor if i'm just quickly doing it so i think it's from the razor, is it razor burn? i put calamine on it to stop irritation but how can i make it go away ... ? thanks.