What does it mean when your breath smells like moth balls?

Plaque bacteria: Most bad breath comes from bacteria in your mouth. Have you had your teeth cleaned recently? You need to brush your teeth, floss and clean your tongue, and see a dentist regularly. Periodontal disease will cause bad breath. If your mouth is clean and healthy then see md. Medical causes could be diabetes, acid reflux, gerd, allergies, post nasal drip.

Sinusitis or GERD: It is important to visit your doctor to find the exact cause and rule out the possibility of certain conditions like sinusitis and GERD that may cause "moth balls" breath smell.