Suggest Treatment For Itchy Rashes On The Body

Hi i break out eveyight in a rash about 7 or 8 at night i thought it was my old couch but i got rid of it and have a brand new one i wased all the throw blanks and i have not changed any soaps or eat anything that would do this. the rash breaks out in different spots every time sometimes in teh breast area sometimes like on by back and sometimes on my lower area it iches and they are small red bumps some it kinda long like a oistion oak rash look but i now that is not it either. after i got to bed then i am ok after i get up and all day long nothing. this is driving me insane. what would this be i dont think i am stressed or anything like that either thanks! plz help