Bad odour from mouth occurs due to the following causes.
1. Causes inside mouth 2 causes inside stomach intestine.3. causes other than from mouth and stomach
Causes inside mouth are most common. They are because of tooth decay, decayed food materials trapped inside corners and folds of mouth and infection of gums. Trapped food materials can be removed by proper brushing and washing well with water and mouthwash. The blackening of teeth gradually cause bad odour. This can be solved by periodical cleaning of teeth by a dentist. Infection of gums and tooth decay has to be treated with medicine and root canal treatment and sealing and any other proper method as per dentist examination and diagnosis.
Bad odour from mouth can be due to problems in digestion, infections and ulcers inside the food tube, stomach or intestine. If the causes are ruled out as of inside mouth, then the actual issue to be diagnosed by a genera/specialist doctor. The treatment has to be as per the examination, tests and diagnosis.
Infection of throat, respiratory areas and the infection of ears and sinus can also cause bad odour in mouth.
Hence the person should fist visits a dentist.
For those wit no specific issues here are some general oral and dental care with home remedies. Use cardamom seed (very little quantity) after meals. Do not keep mouth inactive for a long time. Brush teeth and wash with a mouthwash before going to bed. Use mouth wash after taking pungent and sticky foods. Tae foods that are easily digested and not producing gases much. Keep stomach healthy by regulating eating and preventing constipation.
Those who can, may eat betel leaves with nutmeg , clove, cardamom etc.. after taking food .