Hello, Thank you for consulting with healthcaremagic. Bullous Pemphigoid is an autoimmune disease and it is common in old age females. In this disease bullae are formed on skin and inside the mouth which are slightly painful. But there is no need to worry as there are medications like steroids for the disease which will help in healing of the lesion, and it is also a self healing disease. Better keep in touch with your dermatologist. Hope it will help you.