Hypersensitivity. Patients w/ known disorders of Ca metabolism. Viral (eg, herpes or varicella) lesions of the skin, fungal or bacterial skin infections, parasitic infections, skin manifestations in relation to TB or syphilis, perioral dermatitis, atrophic skin, striae atrophicae, fragility of skin veins, ichthyosis, acne vulgaris, acne rosacea, rosacea, ulcers & wounds. Guttate, erythrodermic, exfoliative & pustular psoriasis. Patients w/ severe renal insufficiency or severe hepatic disorders.