itchy arms at night no rashrash on chest and arms not itchyitchy rash on hands and armsrash on arms and legs not itchyitchy bumpy rash on armsitchy skin on arms no rashred itchy rash on armsitchy rash on arms after sun exposurei have a rash on my arm that itchesitchy rash on forearms onlyitchy blister on armitchy pimples on arms