Tannin: watery solution or made up into ointment.
Thymol.
Thyraden, and other Thyroid preparations.
Amaurosis and Amblyopia.
Amyl Nitrite: useful in many cases of disease of the optic nerve.
Antipyrine.
Arnica: sometimes useful.
Digitalis: in toxic cases.
Electricity.
Emmenagogues: if due to menstrual disorders.