A sticky mouth can only show that your husband may be caused by spleen deficiency or excessive moisture in his body. . .
People with excessive moisture are prone to oral ulcers, swollen lymph nodes, swollen gums, skin scratches, wounds that are not easy to heal, tumors, cancer and so on. And should eat less cold drinks and fruits, especially frozen food.
To eliminate the above diseases, we should pay more attention to our daily habits. Your husband may often stay up late (basically go to bed after 10 at night), he likes to eat before going to bed at night, his spleen and stomach can't rest, and he also likes to eat greasy food or meat or sweets.
Suggestion: Eat less fried greasy food and more vegetables. Dinner is basically finished before 19, so don't eat too much before going to bed.
So you should pay attention to him and help him correct some bad habits. Slowly, this symptom will be alleviated or even disappeared.
I hope I can help you, and finally I wish you a happy life!