Yes, a rash is a recognized symptom of COVID-19. A large meta-analysis of clinical studies found that roughly 17% to 29% of COVID patients develop some form of skin changes during their illness. These rashes take several distinct forms, can appear at different stages of infection, and in some cases show up before any other symptoms like fever or cough.
What COVID Rashes Look Like
COVID doesn’t cause just one type of rash. Clinical data from hundreds of patients has identified six main patterns of skin involvement, and they look quite different from one another.
The most common is a widespread red, flat or slightly raised rash similar to what you might see with measles or other viral infections. It typically appears on the trunk and spreads outward. An itchy, hive-like rash (raised welts that come and go) is the second most frequent pattern. Some people develop small fluid-filled blisters, resembling a mild chickenpox. These three types are generally associated with mild to moderate illness and high survival rates.
More concerning patterns include a lace-like, mottled discoloration of the skin (often on the legs) caused by restricted blood flow, and small red or purple spots that don’t fade when pressed. These reflect deeper vascular involvement and tend to appear in more severe cases. The sixth pattern, commonly called “COVID toes,” gets its own section below because it drew so much public attention.
COVID Toes and Chilblains
COVID toes are painful, discolored, itchy spots or lesions on the toes or fingers. They look similar to chilblains, the patches of irritated skin some people get after cold exposure. Many infectious disease specialists now believe COVID toes are essentially chilblains triggered by the viral infection rather than a completely unique condition. Chilblain-like lesions are a rare but known complication of many viral infections, not just COVID.
The likely cause is either tiny blood clots (microclots) forming in the small vessels of the toes or narrowing of those blood vessels in response to the immune system’s fight against the virus. A strong interferon response, one of the body’s first-line antiviral defenses, may drive localized inflammation in the tiny blood vessels of the extremities. COVID toes and other COVID rashes are not signs of life-threatening complications. They’re generally a minor, self-limiting inconvenience.
When Rashes Appear During Infection
Timing varies by rash type, and this is one of the more useful things to know. Hive-like rashes preceded other COVID symptoms in about 16% of patients who developed them. Blister-like eruptions appeared before other symptoms in roughly 8% to 15% of cases. This means a new, unexplained rash can occasionally be the first clue that you’ve been infected, before the cough or sore throat kicks in.
More often, though, rashes show up during or after the peak of infection. The rash tends to be most pronounced after the viral load has peaked, which makes sense: it’s a visible signal that your immune system is actively responding. In children especially, a rash may be the only sign of infection, with no fever, cough, or other typical symptoms at all.
Why COVID Affects the Skin
The virus enters human cells by latching onto a specific receptor protein found on the surface of many cell types. These receptors are abundant in the lungs and blood vessel linings, which explains the respiratory and cardiovascular effects of COVID. But the same receptors also exist in skin cells and the tiny blood vessels running through the skin, making the skin a potential target.
Once the virus damages blood vessel linings, it triggers a cascade of inflammation. The body releases a flood of immune signaling molecules that recruit more immune cells to the area, which can further damage blood vessels and create an environment prone to tiny clots. This process explains the mottled, lace-like skin patterns and the small purple spots seen in some patients: blood flow gets disrupted or vessels leak. The more common red, flat rashes likely reflect a combination of direct viral effects on skin cells and the broader immune response ramping up.
Rashes in Children and MIS-C
Children with COVID tend to have milder illness overall, and a rash is sometimes their most noticeable (or only) symptom. However, a small number of children develop a more serious post-infection condition called Multisystem Inflammatory Syndrome in Children, or MIS-C. This typically shows up weeks after the initial infection and involves fever combined with abdominal pain, vomiting, diarrhea, skin rash, and red eyes. MIS-C is rare but requires prompt medical attention because it involves inflammation across multiple organ systems.
The rash in MIS-C is part of a larger picture of systemic inflammation, so it won’t appear in isolation. If your child has a rash alongside persistent fever and gastrointestinal symptoms following a known or suspected COVID infection, that combination warrants evaluation.
How Long COVID Rashes Last
Most COVID-related rashes resolve on their own within days to a few weeks as the infection clears. Hive-like rashes tend to come and go over the course of a week or so. Blister-like rashes and widespread red rashes generally follow a similar timeline. COVID toes can linger a bit longer, sometimes persisting for several weeks.
For a subset of people, skin symptoms don’t stay short-lived. The CDC lists rash as a recognized symptom of Long COVID, meaning it can persist, resolve, and reemerge over months or even years after the initial illness. Long COVID skin symptoms are part of a broader pattern of multi-organ effects that can include the heart, lungs, kidneys, and brain.
Managing a COVID Rash
Because COVID rashes are driven by your immune response to the virus, they generally improve as your body clears the infection. For itchy hive-like rashes, over-the-counter antihistamines can help with comfort. Widespread red rashes and blister-type eruptions are typically managed with symptom relief: cool compresses, gentle moisturizers, and avoiding irritants. Topical anti-itch creams can take the edge off.
If you develop a mottled, lace-like pattern on your skin or purple spots that don’t blanch when you press on them, those warrant medical evaluation since they can reflect blood vessel inflammation or clotting issues that may need closer monitoring. The same applies if a rash appears alongside worsening breathing, chest pain, or if your skin takes on a pale, gray, or blue tone, particularly around the lips or nail beds.
Can a Rash Help Diagnose COVID?
A rash alone isn’t specific enough to confirm a COVID diagnosis. Many viral infections cause similar skin reactions, and allergic reactions, medication side effects, and other conditions can mimic COVID rashes. That said, because hive-like and blister-type rashes sometimes appear before respiratory symptoms, an unexplained new rash during periods of high COVID transmission can be a reasonable prompt to test. During the Omicron wave, skin changes were classified as a rare symptom (occurring in fewer than 10% of cases), so they’re less common than respiratory complaints but still worth noting as a potential early signal.