Pitted keratolysis on the sole. Sweating feet and occlusive boots may lead to bacterial overgrowth in plantar skin. The main differential diagnosis is plantar mycosis caused by Tinea rubrum. Eccrine cyst in the eyelids is not very uncommon. It can be treated in a very simple and safe way by freezing with liquid nitrogen.
Healing is usually complete.
Heavy scalp psoriasis in a middle-aged female patient taking oral lithium for a psychiatric disorder. Lithium is one of the few drugs known or suspected to possibly provocate psoriasis. Large, tense blisters proved to be diabetes-induced in origin. All other possible aetiologies were excluded. Healing was spontaneous without scarring.