How are the stimulating remedies employed in psoriasis applied?
As ointments, oils, and paints (pigmenta).
An ointment, if employed, is to be thoroughly rubbed in the diseased areas once or twice daily. The same may be said of the oily applications. The paints (medicated collodion and gutta-percha solution) are applied with a brush, once daily, or every second or third day, depending mainly upon the length of time the film remains intact and adherent.
Name the several important external remedies.
Chrysarobin, pyrogallol, tar, ammoniated mercury, β-naphthol, and resorcin.
Are these several external remedies equally serviceable in all cases?
No. Their action differs slightly or greatly according to the case and individual. A change from one to another is often necessary.
In what forms and strength are these remedies to be applied?
Chrysarobin is applied in several ways: as an ointment, twenty to sixty grains to the ounce, rubbed in once or twice daily; this is the most rapid but least cleanly and eligible method. As a pigment, or paint, as in the following:—
℞ Chrysarobini, .................................... ʒj
Acidi salicylici, ................................ gr. xx
Etheris, ........................................ fʒj
Ol. ricini, ...................................... ♏x
Collodii, ....................................... fʒvij. M.