[PrinceHenry]

My Henry has been scratching like crazy and within 2 days of his bath he is starting to smell really bad and his fur is not shinny at all anymore. Could this be skin related due to his diet or something else? Should I get his skin scraped n tested? Ive always had them on Iams which I know is not a highly rated food but they do so well on it or did. I did switch them to the Iams Small breed once they turned 13 mo. Any suggestions or ideas please let me know...