Your physician should also constantly monitor any drug or vitamin intake and see if these interfere with the medication. Pregnant women are not allowed to take this kind of medication and make sure that the medication is discontinued once the headache becomes manageable. Prophylactic treatment involves the use of Beta Blockers like tenormin, lopressor, and inderal, Calcium Channel Blockers like cardizem, dilacor, and procardia, Antidepressants like elavil and Zoloft, Serotonin Antagonists like Sansert, Anticonvulsants like tegretol, depakote, and dilantin, and Ergot derivatives like cafergot. Aside from these, experts suspect that eating cold foods, added caffeine intake, sleeplessness, general fatigue, sinus congestion, allergies, eyestrain, stress, depression, hunger, and even dehydration. The most common form of headache experienced during pregnancy is migraine that occurs when the blood vessels in the brain constrict and dilate. Actually, one who suffers from cluster headache can experience switches from chronic to episodal attacks and vice versa. The chronic attacks can easily be noticed because the cluster headache attacks at the same time everyday for several weeks and even months. Episodal cluster headache attacks are episodes that happen also at the same time everyday for a few days or weeks and goes into long remission states. Some attribute it to stress or not getting enough nutrients in the diet. Believe it not, the type of medicine being taken may also be the cause of this problem. Should this occur for more than two days, it is best to consult with a doctor immediately for proper treatment. Doctors will not be able to tell that the patient has a chronic headache. Furthermore, keeping a headache journal can help the individual become more aware of things that are happening that he or she may not take note of if not for the headache diary. Keeping a headache diary handy is the first step to the very important headache cure and treatment because this will help you and your doctor correctly diagnose what the problem really is. Although, people must keep in mind that if it is indeed a sinus headache induced by a sinus infection then along with the other symptoms, the person with sinusitis will have constant yellow or green nasal discharge. Without this, it is not a sinus headache from sinusitis. It could be migraine. To help you and your doctor be able to correctly diagnose the root cause of your headache and determine whether it is indeed sinus headache or migraine, it has been said that it is helpful to keep a headache diary.