Additionally, some drugs (griseofulvin, ethionamide, buspirone, haloperidol, chlorpromazine, IL-2, interferon-α, methyldopa, psoralens) and nutritional deficiencies (pyridoxine, zinc, niacin and riboflavin) may induce an SD-like dermatitis, although the mechanism remains unknown [36,37]. This evidence concerns the gene IL2 and dermatitis.