Below are the main rubriks (i.e strongest indications or symptoms) of Euphrasia Officinalis in traditional homeopathic usage, not approved by the FDA.
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FEVER AND CHILL
Much chilliness in a warm room (second day),
Internal chilliness, the whole forenoon, but in the afternoon (after 2 P.M.) violent chilliness in both arms, which were quite cold,
Febrile chilliness all over (after half an hour),
Coldness of the whole surface of the body, under the usual covering at night (first night),
Sudden flushes of heat, with redness of the face and cold hands (without thirst), (after quarter of an hour),
Slight febrile excitement, in the evening (ninth day),≡ more ...