Typical antihistamines like diphenhydramine (Benadryl) are usually fine, as is the decongestant pseudoephedrine (Sudafed) (but NOT phenylephrine (Sudafed PE), stick with the kind you have to ask for at that pharmacy counter). If you have a cough or mucusy build-up, expectorant like guaifenesin (Mucinex, also a common ingredient in cough syrups). You can take the decongestant with either an antihistamine or expectorant, but don't take the antihistamine and expectorant together.
For combination meds, Tylenol Cold is ok, as is Robitussin with or without the expectorant and decongestant.
at 11:06 AM on Dec. 28, 2010