Sick Headache, Aromatic Spirits of Ammonia for

"For a nervous headache there is nothing better for immediate relief than fifteen or
twenty drops of the aromatic spirits of ammonia." This relieves the pain and quiets the nerves and stimulates the heart.

Source: Mother's Remedies: Over One Thousand Tried and Tested Remidies from Mothers of the United States and Canada, T. J. Ritter