I agree with the last responder but would mention this:
My first autoimune issue was a coughing asthma. I was treated with Prednisone for several years before they (I) realized I had Chron's related asthma and the Prednisone was also treating the Chrons. If the coughing persists, mention it to your G.I. so you could then continue the Remicade.
Dave D