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It is possible that the original issue was seborrheic dermatitis and later evolved into perioral dermatitis from the use of steroid creams, such as the Desonide. If there is suspicion that perioral dermatitis could be present, the usual next step would be to stop all steroids creams. Instead, it may be reasonable to use a medicine that affects the immune system by a different mechanism and may help either seborrheic dermatitis or perioral dermatitis, such as tacrolimus or pimecrolimus.