Quote Originally Posted by crazycanuck View Post
Zoom-I thought the sudafed stuff was an antihistamine as well...? I don't feel as stuffed up..
Nope, it's a decongestant. Meds with D, like Allegra-D or Claritin-D are antihistamine + decongestant. Antihistamines will stop sneezing from allergies, but don't do much for congestion, especially of the non-allergic sort.