Patients with AIDS are usually asymptomatic during the incubation period and can usually develop oral Candida infection 1-4 years before and during the onset of the disease. Patients with AIDS need to go through an incubation period of 5-8 years to gradually progress to the onset of AIDS. Patients in the incubation period are usually asymptomatic and may develop oral Candida infection 1-4 years before and during the onset of the disease. Because the viral load in the blood of patients in the AIDS stage is very high and the immune system is severely compromised, they are prone to various opportunistic infections, such as bacterial, fungal and viral infections. Oral candidiasis is a fungal infection that can occur anywhere in the oral cavity and appears as white or yellow spots or plaques, which when wiped away leave a red area with bleeding. Oral Candida infection can be treated with antifungal drugs, while antiviral drugs are applied to inhibit viral replication in the body, so that the immune system can gradually recover.