“…Half of all cases of LCV are idiopathic but secondary causes such as infections and medications have been proposed as the most common triggers [ 7 ]. The medications commonly known to cause LCV are beta-lactams, erythromycin, clindamycin, quinolones, vancomycin, sulfonamide, furosemide, allopurinol, NSAIDs, amiodarone, beta-blockers, TNF-alpha inhibitors, SSRIs, metformin, and warfarin [ 2 , 8 ]. In addition, several vaccines, including those against influenza, HBV, BCG, and HPV, have been implicated in the development of LCV [ 7 , 9 ].…”