Loss or altered sense of taste, dry mouth and sores are common among patients with COVID-19 and those symptoms can last long after others disappear, Brazilian researchers report. Researchers found that having dry mouth was the most common problem, followed by loss of taste (dysgeusia) and fungal infection (thrush). What do COVID canker sores look like? Mouth sores may consist of ulcers and red, purple, white, or brown spots on the roof of the mouth. Or even white spots on the tongue.
They occur because the virus attacks muscle fibers and linings, which changes the appearance of oral tissues. But as COVID-19 cases continue, new symptoms are being documented, including a rare symptom known as COVID tongue. People with COVID tongue have swollen tongue that can develop lumps, ulcers and white spots. Keep reading to learn more about this unusual symptom of COVID-19.