Eyelid surgery: Is it okay to take Zyrtec D along with Bromelain?

I am a big fan of both Arnica and Bromelain just prior to and following cosmetic surgical procedures.  I would exercise caution with the use of decongestants which is what is found in Zyrtec D following any surgical procedure.  One of the biggest potential complications of any surgical procedure is bleeding.  Decongestants will elevate your blood pressure, perhaps only slightly.  Elevated blood pressure can precipitate bleeding.  

It is fine to take these and the Zyrtec. Most patients start these supplements about a week pre-op.  Studies have not really shown them to be effective, but patients often feel that they heal faster and with less bruising when they take them.   

I would have your surgeon review your medication list prior to surgery. Allergy medication and medication to prevent bruising really depends on each individual surgeon's preference.