Certain foods, health conditions, and habits are among the causes of bad breath. In many cases, you can improve bad breath with consistent proper dental hygiene. If simple self-care techniques don't solve the problem, see your dentist or physician to be sure a more serious condition isn't causing your bad breath.
The Schools Division Office (SDO) in the province also called on them to strictly follow the February 4-issued "STOP NCOV", the DepEd acronym that relates the precautionary measures they should undertake in educating students about the new strain of coronavirus.