Common causes of headaches includes stress, tension, anxiety, allergies; constipation, coffee consumption, eyestrain, hunger, sinus pressure, muscle tension, hormonal imbalances, temporomandibular joint (TMJ) sundrome, trauma to the head, nutritional deficiencies; the use of alcohol, drugs or tobacco; fever and exposure to irritants such as pollution, perfume or after-shave lotion. The brain itself is insensitive to pain.

Most probably the pain of headaches is due to dilatation of the arteries or to pressure of some sort. The dilatation may be in response to nervous stimuli, or the pain may arise from the neck muscles or scalp, or from other nearby organs. 

Dosage of Combination Salts:

Suggested dosage for Children and Adolescents:

• 0 to 1 year: 1 tablet
• 1 to 6 years: 2 tablets
• 6 to 10 years: 3 tablets
• 10 years and older: 4 tablets

Acute cases: In general, administered every 15 minutes, half-hour, hourly or in 2-hour intervals, as required, depending on the intensity of the symptoms. 

Subacute cases: 3-4 times a day for a relatively extended period of time. 

Chronic cases: 2-3 times a day for a relatively extended period of time.

Infants: 1 tablet at a time, dissolved in some warm water. 

More than one salt can be taken concurrently; use in alteration. 

Combination salt tablets should be allowed to dissolve under the tongue. Note: The salts are lactose based (milk and sugar) 

Composition: Ferrum Phosphoricum 3X, Kali Phosphoricum 3X, Magnesia Phosphorica 3X, Natrum Muriaticum 3X

Ferrum Phosphoricum 3X: This biochemic salt is useful as a first-aid for congested, throbbing headaches associated with the dilation of arteries. It is the chief remedy in headaches of children.   

Inflammatory headaches from cod and from heart of the sun with a blushing pressing, stitching or throbbing pain in the temples or over eyes. Congestive headache at menses, soreness of the scalp, pain is worse with motion or noise and worse stooping or shaking head, headache with vomiting of undigested food, headache is better pressing a cold object to the spot, tongue is furry, headache is worse on the right side from vertex to supraorbital region, headache with red face and eyes, rush of blood to the head, headache following injury to the head. 

Kali Phosphoricum 3X: Nervous headaches, patient is sensitive to noise, there is irritability and confusion, pain is relieved by gentle motion, headaches in students due to fatigue, tongue is brownish yellow with foul breath, there is a pain and weight at the back of the eyes and head, patient is better eating, there is a loss of strength, sleeplessness, despondency, weariness, yawning, stretching, prostration. Hysterical headaches, headaches before bilious vomiting, neuralgic headaches, humming in ears, patient hears noises in their head before falling asleep, menstrual headaches with hunger, severe pain in the left mastoid, headache is worse with motion and open air. 

Magnesia Phosphorica 3X: This remedy has specific action on the muscular tissue itself and ameliorates any pains which are darting, spasmodic in character, boring, lightning-like and accompanied by a constrictive feeling. All of these descriptive words appropriately apply to many kinds of headache pain. Pain of headache is excruciating, spasmodic symptoms, neuralgic and rheumatic headaches, shooting or stringing pains, shifting pain, headaches caused by occipital problems, nervous headaches, pain is worse in the occipital region and after mental labor, headache is better with warm application. 

Natrum Muriaticum 3X: This tissue salt is primarily directed to those headaches which are mainly in the forehead and temples, of the congestive type. Patient experiences dull, heavy headaches with drowsiness, sleep is not refreshing, headaches with constipation, frontal sinus inflammation, headaches with vomiting of clear phlegm or water, stringy mucous, headaches which occur before, during and after menses, headaches start in the morning after waking, lasting until noon, catarrhal headaches, migraines, hammering headaches, generally worse in the morning.