What are Functional Medicines? Functional Medicines are medical treatments that eliminate the root cause of illness and chronic diseases. Besides curing the disease, they help in preventing it from recurring later on in life. What is Migraine and its Symptoms? A migraine is a headache that often affects one side of the head and can be extremely painful, throbbing, or pulsating. It frequently comes with high sensitivity to light and sound, strong smells, movements, nausea, and vomiting. One of the leading causes of impairment among those under 50, around the world, is migraine headaches.