Myers et al. published another case report of acute contact dermatitis, presumably caused by Rhus urushiol exposure, in a patient with psoriasis and psoriatic arthritis treated with etanercept (a soluble recombinant human TNF-α inhibitor), suggesting that cutaneous delayed-type hypersensitivity reactions may not be impaired by this biological therapy [54]. Here, TNF is linked to psoriatic arthritis.