Several medications, including verapamil and nifedipine, as well as ergot derivatives such as bromocriptine and pergolide, have been associated with medication-induced erythromelalgia.
The consumption of two species of related fungi, Clitocybe acromelalga from Japan,[REF] and Clitocybe amoenolens from France,[REF] has led to several cases of mushroom-induced erythromelalgia which lasted from 8 days to 5 months [REF].