How Can I Reduce the Swelling on my Parotid Gland After Facelift?

First, you need to seek the care of a board certified plastic surgeon near your home to follow you and make sure in fact that this is because of Parotid Swelling. If so he might recommend a Scopolamine tanscutaneous patch to decrease its activity. However there are a lot of other factors such as hematoma, seroma, infection, etc that can also cause the symptoms you mentioned. 

Your story unfortunately is all to common of the Medical Tourism industry where patients substitute best surgical care and followup for the chance a cheaper surgery by an surgeons with potentially substandard training and the inability for follow-up care.

  I agree with the other doctors who replied.  Complications after cosmetic surgery are rare, and because of this, certainly there are patients like yourself who seek out lower prices in third world countries.  Although you may just have a hematoma which will improve with time, you could also have an infection or other severe problem that may require medical or even surgical treatment and that no one on this forum can help you with.  You will need to return to your operating surgeon.