Can having mouth thrush go up into the nasal passages?

Oral thrush, a type of yeast infection caused by an overgrowth of the Candida fungus, typically affects the mouth and throat. Spreading into the nasal passages is possible but not as common as occurring in the mouth and throat.

When oral thrush affects the nasal passages, it's known as "nasopharyngeal candidiasis." It can cause symptoms like nasal congestion, a stuffy or runny nose, sore throat, difficulty swallowing, and a change in the sense of smell or taste.

Nasopharyngeal candidiasis is more likely to occur in individuals with weakened immune systems, including those undergoing chemotherapy or radiation treatment, people with uncontrolled diabetes, HIV/AIDS patients, or those taking certain medications that can suppress the immune system.

If you suspect you may have nasopharyngeal candidiasis, it's essential to see a doctor or healthcare professional for proper evaluation and treatment. They can recommend appropriate antifungal medications and provide guidance on managing the infection and preventing its recurrence.