There are various sampling methods. The one chosen will depend on a number of factors (such as time, money etc.). 1. Random Sampling Everyone in the entire target population has an equal chance of being selected. This is similar to the national lottery.
Various types of medications have been evaluated for migraine prophylaxis, including beta blockers, antidepressants, anticonvulsants, nonsteroidal anti-inflammatory drugs (NSAIDs), angiotensin blockade agents, and calcium channel blockers.
Common primary headaches include tension, migraine, and cluster headaches. Home remedies for tension headaches, the most common type of primary headache, include rest and over-the-counter (OTC) medications for pain. Secondary headaches are usually a symptom of an injury or an underlying illness.