one vial for the day, then throw it away. You may also need to consider Restasis, which is a prescription drop to treat the inflammation, and thus allow your eyes to produce more of their own tears. Take an oral multivitamin and fish oil (Omega 3) supplements, if OK with your primary doctor. Meibomian gland dysfunction, which can lead to lipid (oil) deficiency, is treated with warm compresses and lid hygiene, plus topical and oral antibiotics in some cases.