Another symptom of Covid-19 joins the list: a mouth rash


  • Some Covid-19 patients have rashes in the mouth
  • It is called enanthem and is common in patients with viral infections
  • It is not yet known how common this symptom is in the case of Covid-19

While rashes have long been linked to Covid-19, Spanish doctors report that rashes inside the mouth also occur in some cases.

The rashes are clinically known as an enanthema, and it’s no surprise that they show up with Covid-19, an independent U.S. dermatologist said of the new study.

“An enanthem is a rash [small spots] on mucous membranes, ”explained Dr. Michele Green, who practices at Lenox Hill Hospital in New York. It is very common in patients with viral infections like chickenpox and foot-and-mouth disease. It is characteristic of many viral rashes to affect the mucous membranes. “The new Spanish study was published on July 15 in Dermatology JAMA. Researchers led by Dr Juan Jimenez-Cauhe, of the Ramon y Cajal University Hospital in Madrid, examined 21 patients diagnosed in early April with Covid-19 and associated rashes.

Not related to drugs

Among these patients, six patients (29%) had an enanthema inside the mouth. Affected patients were between 40 and 69 years old, the team said, and four of the six were women.

The mouth rash appeared between two days before the onset of the other symptoms of Covid and 24 days after, with an average delay of around 12 days after the onset of symptoms.

In most cases, the enanthema did not appear to be related to any medication the patients were taking, further reinforcing the notion that it was an illness with the new coronavirus causing reddish spots to appear.

It is still not clear how widespread this symptom is with Covid-19, because “for safety reasons, many patients with suspected or confirmed Covid-19 do not have their oral cavity examined”, noted the group of Jimenez-Cauhe.

Image Credit: Getty Images


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