Sjögren’s rash doesn’t have one single appearance. It can show up as small purple-red dots on the lower legs, ring-shaped plaques on the face and arms, hive-like welts that linger for days, or simply widespread dry, flaky skin. Up to 72% of people with primary Sjögren’s develop some form of skin involvement, making it one of the most common symptoms beyond the classic dry eyes and dry mouth.
The specific type of rash you see depends on what’s driving it: inflammation in small blood vessels, immune cells attacking skin tissue, or the same moisture loss that affects the eyes and mouth. Here’s how each type looks and feels.
Dry, Flaky Skin (Xeroderma)
The most common skin change in Sjögren’s is extreme dryness, affecting roughly 72% of people with the condition. This isn’t ordinary winter-dry skin. The same immune process that dries out tears and saliva also reduces moisture in the skin, leaving it rough, scaly, and prone to cracking. Hair often loses its luster and becomes brittle alongside the skin changes.
The dryness frequently causes persistent itching, and the skin may look dull or feel tight. Lips become chronically dry and cracked, and some people describe a burning sensation on the tongue and inside the mouth. Over-the-counter moisturizers help, and using them consistently (especially right after bathing) can keep the worst of the scaling and cracking under control.
Purpura: Small Red-Purple Spots on the Legs
When Sjögren’s triggers inflammation in small blood vessels, a condition called cutaneous vasculitis, the result is often palpable purpura: clusters of small, raised red or purple spots that don’t fade when you press on them. They appear most often on the lower legs, though they can spread to the ankles and feet. The spots range from pinpoint-sized to a few millimeters across and may feel slightly bumpy under your fingertips.
Cutaneous vasculitis shows up in roughly 10 to 30% of people with primary Sjögren’s. In some cases, purpura is actually the first noticeable symptom, appearing before dry eyes or mouth become obvious. The spots typically develop in crops, meaning a batch appears over a few days, then gradually fades from red-purple to brownish as the skin heals, sometimes leaving faint discoloration behind.
Annular Erythema: Ring-Shaped Plaques
About 9% of people with primary Sjögren’s develop annular erythema, a distinctive rash made up of expanding ring-shaped or oval lesions. These plaques are pink to red, often with a slightly raised border and a flatter, sometimes purplish center. They tend to appear on the cheeks, arms, and upper body, and individual rings can grow to 7 centimeters or larger.
Dermatologists recognize three patterns. The first looks like a firm doughnut-ring with a clearly raised edge. The second resembles the scaly, arc-shaped patches seen in lupus skin disease, with fine scaling along the borders. The third looks more like a cluster of firm, insect-bite-like bumps. All three are strongly linked to a specific antibody called anti-Ro, which your doctor can test for with a blood draw.
Sunlight is a major trigger for this type of rash. In one study of Sjögren’s patients with annular erythema, every single participant reported photosensitivity, and 93% said their skin flared during summer months. Broad-spectrum sunscreen and sun-protective clothing can reduce the frequency and severity of flares.
Hives That Don’t Act Like Normal Hives
Sjögren’s can also cause urticarial vasculitis, which looks like hives at first glance: raised, red welts on the skin. But these welts behave differently from an allergic reaction in important ways.
Normal hives typically fade within a few hours and move around the body. Sjögren’s-related urticarial hives tend to stay fixed in the same spot for more than 24 hours, sometimes lasting several days. Instead of itching, they often burn or feel painful. And when they finally resolve, they leave behind bruise-like marks or brownish discoloration, something standard hives almost never do. Between 48 and 93% of people with urticarial vasculitis have this residual bruising, compared to under 21% with ordinary chronic hives.
If you’re getting recurrent hive-like welts that last longer than a day and leave marks behind, that pattern is a strong signal for urticarial vasculitis rather than a simple allergic reaction.
Eyelid Dermatitis
An often-overlooked rash in Sjögren’s is eyelid dermatitis, which affects up to 42% of patients. The skin around the eyes becomes red, dry, and flaky, and may feel irritated or slightly swollen. Because the eyelid skin is so thin, it’s especially vulnerable to the moisture loss and inflammation that Sjögren’s causes. This is easy to mistake for eczema or an allergic reaction to cosmetics, so it often goes unrecognized as part of the disease.
Raynaud’s Phenomenon
Between 16 and 35% of people with primary Sjögren’s experience Raynaud’s phenomenon, where fingers (and sometimes toes) turn white, then blue, then red in response to cold or stress. This isn’t a rash in the traditional sense, but it’s a visible skin change that often accompanies the condition. The color shifts happen because blood vessels in the extremities temporarily spasm and restrict blood flow.
How Sjögren’s Rashes Are Managed
Treatment depends on the type of rash. For dry skin, consistent use of rich moisturizers is the frontline approach, and most are available without a prescription. For inflammatory rashes like purpura, annular erythema, and urticarial vasculitis, hydroxychloroquine (an immune-modulating medication also used in lupus) can help control the underlying disease activity driving the skin lesions. Potent prescription steroid creams or ointments are sometimes used for localized flares.
Sun protection matters for nearly all Sjögren’s skin involvement, but especially for annular erythema. UV exposure can trigger new lesions or worsen existing ones, so daily sunscreen and limiting direct sun exposure during peak hours make a real difference in flare frequency.
If you notice any of these skin changes alongside dry eyes, dry mouth, or joint pain, the combination can help point toward a Sjögren’s diagnosis. A skin biopsy of a rash lesion sometimes reveals clusters of immune cells, including specific types of B cells, that are characteristic of Sjögren’s and can support the diagnosis even before other tests come back positive.