do maids accommodate special requests @ hotels ? united states Travel question.?

I am on vacation and the blanket and pillow are making me breakout ( I am very sensitive to some detergents.) I went to the store and bought a blanket and pillowcase and id prefer to use them now. Should I leave the maid a note asking her to not make the bed, to not put the original bedding back on the bed? Or is this rude? Will she even accommodate my request? If I do leave. Note, should I explain the situation? I don’t travel too much, please advise. Thanks!