Target or Bullseye-Shaped Rash on Baby
The short answer
A target or bullseye-shaped rash with concentric rings can indicate erythema multiforme (often triggered by viruses or herpes simplex) or Lyme disease (from a tick bite). Erythema multiforme causes multiple target-shaped lesions on the hands and feet. A single expanding bullseye rash after a tick bite needs prompt evaluation for Lyme disease.
Parents everywhere have the same worry. You are doing the right thing by looking into it.
By Age
What to expect by age
Target-shaped rashes are very rare in newborns. If one appears, it should be evaluated promptly by your pediatrician to determine the cause. Tick-borne diseases are possible even in very young infants if they spend time outdoors in tick-endemic areas.
Erythema multiforme can occasionally occur in infants, often following a herpes simplex or other viral infection. It presents as distinct target-shaped lesions, often on the hands, feet, and face. If your baby develops these distinctive lesions, see your pediatrician for evaluation and to determine if treatment is needed.
As babies become more mobile and spend time outdoors, tick exposure increases. A single expanding bullseye rash (erythema migrans) at the site of a tick bite is the hallmark of Lyme disease and should be evaluated promptly. Not all Lyme rashes have the classic bullseye appearance, so any expanding rash after a tick bite warrants attention.
Toddlers playing outdoors are at increased risk for tick bites. Erythema migrans from Lyme disease typically appears 3 to 30 days after a tick bite and expands over days. Erythema multiforme from viral triggers can also occur. Target-shaped rashes should always be evaluated, especially in tick-endemic regions.
What Should You Do?
When to take action
- There is no version of a true target-shaped rash that should be dismissed; all should be evaluated by a healthcare provider
- Any rash that has a distinct target or bullseye appearance should be seen by your pediatrician
- A rash that appeared at the site of a known or suspected tick bite, even without a classic bullseye pattern
- Multiple target-shaped lesions on the hands and feet following a viral illness
- An expanding bullseye rash after a tick bite, as early treatment for Lyme disease prevents complications
- Target-shaped lesions with mouth sores, swelling, or difficulty eating and drinking, which could indicate severe erythema multiforme
- Your baby has a target-shaped rash with fever, joint swelling, or other systemic symptoms
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Skin Concerns
Circular or Ring-Shaped Rash on Baby
A ring-shaped or circular rash on a baby can be caused by ringworm (a fungal infection), granuloma annulare, nummular eczema, or Lyme disease. Ringworm is the most common cause and is easily treated with antifungal cream. If the ring has a clear center with a raised, scaly border, ringworm is very likely. A ring-shaped rash following a tick bite needs prompt medical evaluation.
Baby Rash Accompanied by Fever
Rashes that occur with or after a fever are very common in babies and are most often caused by viral infections. Roseola is the classic example, where a rash appears after the fever breaks. While most causes are benign, a rash with fever should always be monitored carefully, and a non-blanching rash with fever needs immediate medical attention.
Large Insect Bite Reaction in Baby
It is common for babies and young children to have larger reactions to insect bites than adults. A large local reaction with significant swelling, redness, and firmness around a bite is usually not an allergy but rather a normal immune response to the insect's saliva. True allergic reactions involve hives, swelling away from the bite, or breathing difficulty.
Baby Acne vs Eczema: How to Tell the Difference
Baby acne and eczema can both cause facial rashes, but they look and feel different. Baby acne appears as small red or white bumps, similar to teenage acne, usually on the cheeks, nose, and forehead. Eczema causes dry, rough, red, itchy patches. Baby acne resolves on its own by 3 to 4 months, while eczema may need ongoing management.
Baby Acne (Neonatal Acne)
Baby acne is a very common, harmless condition that appears as small red or white bumps on your newborn's face, usually around 2-4 weeks of age. It is caused by maternal hormones still circulating in your baby's system and clears up on its own within a few weeks to months without any treatment.
Alopecia Areata in Babies
Alopecia areata is an autoimmune condition where the immune system attacks hair follicles, causing round, smooth patches of hair loss. While uncommon in babies, it can occur at any age. The condition is not painful or contagious. Many children experience spontaneous hair regrowth, though it may take months. Your pediatrician or dermatologist can confirm the diagnosis.