I’ve always found that in matters of health, knowledge is power. I don’t mean that in a silly, after school special sort of way, but every time I’m experiencing some sort of physical problem, knowing why it occurs helps me tolerate and respond to it much better. This is especially true for migraine headaches. When in the throes of a migraine, its easy to do nothing but reel from the nausea and pain, but knowing what’s happening in your body and why will give you a degree of power over those feelings. On top of that, having that clinical mindset will also help you react appropriately if you feel one coming on. Imitrix is used to treat migraines and is available from an online Canadian Pharmacy.

Unfortunately medical science has yet to understand why migraines start, or what triggers them. There is some evidence to support the idea that migraines are triggered; stress, fatigue, and hunger are the common suspects. Information about what’s actually occurring during a migraine is more definite. Migraine sufferers commonly report a throb — waves of pain that shoot back and forth across the head. Personally, I could swear that I could feel every pulse of blood throughout my entire head. As it turns out, that’s very much the case.

During a migraine, but well before the onset of pain, blood vessels in the head constrict. Once this constriction subsides, all of the blood vessels in the scalp dilate, or stretch out — it’s almost as if the body is reacting by snapping back in the other direction. Unfortunately, this makes the blood vessels permeable, and some fluid actually leaks through the artery walls. That fluid then hits the pain receptors surrounding the vessels. Because your scalp is sensing pain, your body reacts as it would to an injury and causes the tissue to swell. That creates the perfect storm of painful conditions: fluid triggering pain receptors, pressure to keep it packed in tight, and a constant pulse that shakes the whole system. It’s analogous to constantly pricking your scalp with billions of tiny needles every time your heartbeat rolls through your scalp. No wonder it feels so terrible.

Luckily, there’s a proven medication that will cut this self-feeding process off before it becomes too bad. Sumatriptan, which is the generic equivalent to Imitrex, is awfully efficient at reversing the runaway pain of a migraine. It does this in two ways. First, it prevents the dilation of the blood vessels, which leads to the leakage that triggers the pain receptors. Second, it blocks the pain receptors in the head, which prevents your body from inflaming scalp tissue in response to the perceived injury. However, there’s a catch. Once you’re in the full swing of a migraine headache, there’s little this medication can do aside from mitigate the pain you experience. That’s why Sumatriptan needs to be taken at the first sign of a headache so it can head off the migraine before it explodes. You can buy Sumatriptan from an online pharmacy in Canada.

That’s why, if you have a prescription for Sumatriptan, you want to make sure that you have some on hand at all times. A cheap and headache-free method of filling your prescription can be through Canadian pharmacies online. Some shady retailers have given the prospect a bad reputation, but it’s entirely legal and safe if done the right way. A handy way of finding a reputable pharmacy is through Pharmacy Checker, which is a popular website that ranks pharmacies using checkmarks. Checking out one of the highest ranked pharmacies is a great place to start. Hopefully using that website, you can take control of your migraines by uniting knowledge and medical science.