Erythrinus
Animal
Erythrinus is suited to patients with chronic skin affections, particularly pityriasis rubra, especially when there is a family history of syphilis indicating a second-generation syphilitic taint.
Key symptoms
- Pityriasis rubra appearing in large patches on the chest
- Chronic red rash resembling syphilitic skin eruption
- Skin conditions representing second-generation syphilitic manifestation

A kind of Red Mullet. South America. N. O. Erythrininæ. Tincture of the fish.
Clinical
Pityriasis rubra. Syphilis.
Characteristics
Dr. Burnett is the authority for this medicine. He bases his use of it on an account of its effects on some sailors who ate the fish. They came out with a peculiar red rash which became chronic, and which the doctors took for a form of syphilis. Dr. Burnett cured with it a case of pityriasis rubra appearing in a large patch on the chest, and benefited other cases. He believes this form of skin affection to be a manifestation of syphilis in the second generation, the father of the patient he cured having had syphilis. Aurum muriaticum is the complementary remedy.
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