Therapy of Resistant Psoriasis with Topical Corticosteroids and Dimethylsulfoxide

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Abstract
The sequential application of full-strength dimethylsulfoxide (DMSO) and potent topical corticosteroid preparations was very effective in resistant plaque-type psoriasis. Complete clearing may be achieved in 3–4 weeks. Lower strengths of DMSO were less beneficial. Irritation from the solvent was effectively controlled by corticosteroids and was limited to transient burning or stinging. Resistance to topical corticosteroids may be overcome by the concomitant use of DMSO.