Shelly 2 reported a similar case where lesions were due to hypersensitivity to penicillium mould of Blue Cheese.
[jpma.org.pk]
[…] hypersensitivity reaction to a variety of agents, including drugs, arthropod bites, infections (bacterial, mycobacterial, viral, fungal, filarial), ingestion (blue cheese Penicillium
[dermpathdiagnostics.com]
[…] annulare centrifugum is nor known but Cases related to Internal malignancy, sensitivity to Hydroxy chloroquine Sulphate, 1 Fungal infection of feet, Hypersensitivity to Penicillium
[jpma.org.pk]