Early morning especially smelly mouth can first temporarily use a toothbrush to clean the mouth or use mouthwash to freshen the breath, and then go to the hospital to check the cause of the cause of medication or surgical treatment. 1. Symptomatic treatment: Early morning bad breath can first use a toothbrush to clean the inside of the mouth and teeth, or use mouthwash gargle temporary relief of bad breath. 2. Treatment: Then you need to go to the hospital to find out the cause of bad breath, if the oral cleaning is not in place to use a toothbrush to effectively brush your teeth. If it is caused by periodontitis, you need to carry out periodontal treatment to eliminate the inflammation of the gums, if it is a systemic disease, such as digestive diseases gastritis, you need to use the drug teprenone treatment. It is recommended to go to the hospital in time to find out the cause of bad breath in the morning, and then treat the cause of the disease. The use of drugs need to follow the doctor’s instructions.