What are some of the best ways to either reduce facial flushing or cure it completly?  

What's the cause. The best way to treat this is to find the cause and and treat that. Treatment will be different depending on the cause. Please see your doctor to have a conversation. Good luck.
Depends. There are multiple causes of facial flushing including cold weather, alcohol, and even some tumors. For a more specific answer, you should seek the professional advice of a doctor who may refer you to a dermatologist or endocrinologist.