o connection with use of the eyes. When headache
is frequent the eyes should always be examined by a competent oculist
(a physician) not by any sort of an optician.

=Decayed Teeth.=--These not uncommonly give rise to headache.

=Disorders of the Nose and Throat.=--Such troubles, especially
adenoids and enlarged tonsils in children, enlarged turbinates, and
polypi (see Nose Disorders, p. 60) are fruitful sources of headache.
In nose-headaches there is often tenderness on pressing on the inner
wall of the bony socket inclosing the eyeball.

=Diseases of the Maternal Organs.=--These in women produce headache,
particularly pain in the back of the head. If local symptoms are also
present, as backache (low down), leucorrhea, painful monthly periods,
and irregular or excessive flowing, or trouble in urinating, then the
cause of the headache is probably some disorder which can be cured at
the hands of a skillful specialist in women's diseases.

=Nervous Headaches.=--These occur in brain exhaustion and anaemia, and
in nervous exhaustion. There is a feeling of pressure or weight at the
back of the head or neck, rather than real pain. This is often
relieved by lying down. Headache from anaemia is often associated with
pallor of the face and lips, shortness of the breath, weakness, and
palpitation of the heart. Rest, abundance of sleep, change of scene,
out-of-door life, nourishing food, milk, cream, butter, eggs, meat,
and iron are useful in aiding a return to health (see Nervous
Exhaustion, Vol. III, p. 17).

=Neuralgic Headaches.=--The pain is usually of a shooting character,
and the scalp is often exceedingly tender to pressure. They may be
caused by exposure to cold, or by decayed teeth, or sometimes by
inflammation of the middle ear (see Earache, p. 40).

=Headache from Poisoning.=--Persons addicted to the excessive use of
tea, coffee, alcohol, and tobacco are often subject to headache from
poisoning of the system by these substances. In tea, coffee, and
tobacco poisoning there is also palpitation of the heart in many
cases; that is, the patient is conscious of his heart beating,
irregularly and violently (see Palpitation, Vol. III, p. 171), which
causes alarm and distress. Cessation of the habit and sodium bromide,
twenty grains three times daily, dissolved in water, administered for
not more than three days, may relieve the headache and other trouble.

Many drugs occasion headache, as quinine, salicylates, nitroglyc