“…The most prevalent BAs used in patients with BA‐induced AIBD were anti‐TNF‐α therapies. Anti‐TNF‐α agents have been associated with the development of cutaneous immune‐related adverse effects such as new‐onset or worsening of psoriasis, vasculitis, lupus‐like syndrome, Stevens‐Johnson syndrome, toxic epidermal necrolysis, erythema multiforme, sarcoidosis, and dermatomyositis, while rarely associated with BP, PV, or LABD. Paradoxically, anti‐TNF‐α agents have been reported to be efficacious in the treatment of AIBD, though this has only been supported by small cases, with a lack of response in larger studies …”