How does the SPG nerve block procedure work to treat migraines?

An SPG nerve block is a procedure for treating migraine headaches. John Lipman, MD explains how the procedure resets a patient’s pain receptors, and more.

Learn how drugs called CGRP inhibitors can help keep migraines from developing.

An overview of early-stage and late-stage diabetic retinopathy, with a look at diabetic macular edema.

If you are living with nasal polyps, answering these questions may help you better understand your experience.

Learn why hypertension in older adults is linked with stroke and dementia.

What is "frozen shoulder" exactly and why are some people more at risk than others?