Thanks for writing your query.
It will be helpful if you mention the location of your headache. Whether it is localized to one side only or is it a generalzed headache?
After reading your post, it seems that you are having Migraine headaches
. These are one sided headaches and are usually trigerred by some factors, some of them are :-
1. Lack fo sleep
2. Missed meal
3. Physical / mental stress
4. Cigarrate/ Alcohol
5. During mensturation in females
6. Dairy products
7. Some foods which contain MSG
8. Change in climatic conditions, more in cold
9. Certain smell of perfumes
You can notice which factor is triggering your attack and avoid that factor. This will reduce the frequency and intensity of the attacks.
500mg along with Domperidone
10 mg is helpful during the initial period of the attack. Stronger pain killers are needed for more severe attack. Antimigraine medicines can be started after getting yourself examined by a Physician to rule out other causes of headaches and take medicines under medical supervision only.
I hope this is helpful to you.