This section is from the book "A Treatise On The Materia Medica And Therapeutics Of The Skin", by Henry G. Piffard. Also available from Amazon: A Treatise On The Materia Medica And Therapeutics Of The Skin.
C. Scorbutus.
Two cases of erythematous lupus were treated with the juice of three lemons daily, one greatly improved, the other was cured; Wardell, 137, 2/70, 333.
Lupus,* Cooke, 137, 2/59, 662.
Psoriasis, Wright, 187, '47, 387.
D. Acne indurata, ulcerating lupus, freckles, 43, 205. As an anti-pruritic in lichen aestivus, 201.
Dry chronic eczema of fingers, lips and face, 205.
The officinal preparations from the lemon are: Oleum Limonis; Spiritus Limonis; Syrupus Limonis; Acidum Citricum (q. v.), and Syrupus Acidi Citrici.
The reports of Wardell and Cooke (supra), as to the efficacy of lemon juice in lupus, certainly merit the careful consideration of all who are interested in the treatment of this most obstinate disease. My only personal experience thus far is confined to a single case, which most persistently relapsed after operation. This patient took about an ounce and a half of the juice, together with large doses (eight ounces daily) of cod-liver oil. This was kept up with slight intermissions for several months, during which no relapse occurred. The result, however, if the internal treatment had anything to do with it, may, with equal fairness, be attributed to the oil.
 
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