Mycotic stomatitis is an oral disease caused by a fungal infection that leads to vitamin deficiencies in the patient’s immune system. Mycotic stomatitis, also known as thrush, is a disease of the oral mucosa caused by Candida albicans infection. Due to the widespread use of antibiotics and immunosuppressants, patients suffer from dysbiosis, vitamin deficiencies, and lowered immunity. Fungal infections are increasing, which leads to a higher incidence of oral mucosal candidiasis. The clinical manifestations of mycotic stomatitis are acute pseudomembranous and acute erythematous, the former occurring more often in infants and children and the latter often occurring more often in adults. Patients with mycotic stomatitis are advised to rinse their mouths with baking soda, which alkalizes the environment in the mouth and inhibits the growth and reproduction of Candida albicans. It is also important to stop using antibiotics to avoid further bacterial dysbiosis. Maintain oral hygiene, pay attention to rest and avoid overwork. If the symptoms are not relieved after simple treatment, you should consult a doctor for timely treatment under the guidance of a doctor.