The article presents a study focusing on intravenous immunoglobulins for rituximab-resistant mucous membrane pemphigoid (MMP). Topics include rituximab (anti-CD20) and high-dose intravenous immunoglobulins (IVIG) both have been reported to be effective in refractory MMP and the clinical improvement in patients was due to a delayed response to rituximab or the combination of rituximab and IVIG.