If you have an occasional mild headache, Andrew Lockie, M.D., recommends the following remedies in his book The Family Guide to Homeopathy. He suggests taking the remedy appropriate for your symptoms every 10 to 15 minutes for up to ten doses.
If the headache comes on suddenly, feels like a tight band is wrapped around your head and is worse in cold air and you feel apprehensive, Dr. Lockie says to try a 30C dose of Aconite. Take a 30C dose of Apis, he says, if your body feels bruised and tender and you have a stinging, stabbing or burning headache that feels worse in hot air. If you have a flushed face, dilated eyes and a throbbing headache that is worse in the hot sun, he recommends a 30C dose of Belladonna. And for a headache that feels like a nail is being driven into your skull, he says to take a 6C dose of ignatia.
All of these remedies are available in many health food stores. To purchase the remedies by mail, refer to the resource list on page 637.