There could be multiple causes of halitosis
and white patches inside mouth. Oral candidiasis( fungal infection
) is one of them. It can also involve lips and angles of the mouth. However correct diagnosis and proper treatment can only be instituted once your oral cavity and lips have been thoroughly examined. For the same a doctor's visit is mandatory. As a general oral care, do warm saline gargles or betadine
gargles after every meal and apply clotrimazole
mouth paint over your white patches twice to thrice in a day. If it is a fungal infection, you might need a course of oral anti fungal also. Take care.