question: My husband 34 year old male, recently had the upper lobe of his left lung removed.  He had surgery October 17, 2013.  He is on Hydrocodone 5-325 and .5 Xanax but hasn't taken either since 3:00pm today.  He was using a heating pad on his back tonight where the scar is.  He was also drinking alcohol.  When he removed his shirt to get in to bed he had red wells/rash all over his back and his face and neck are very flushed and warm.  Any idea what this May be?