Eczema and Asthma Link (Atopic March)
The short answer
The "atopic march" describes a pattern where eczema in infancy is followed by food allergies, hay fever, and asthma later in childhood. While having eczema does increase the risk, it is not a certainty: most children with eczema do not develop all these conditions. Early, effective eczema treatment and allergen introduction may help reduce the risk.
Parents everywhere have the same worry. You are doing the right thing by looking into it.
By Age
What to expect by age
Eczema is often the first sign of the atopic march, commonly appearing in the first few months of life. Research suggests that aggressive early treatment of eczema, including maintaining a strong skin barrier with consistent moisturizing, may help reduce the risk of developing food allergies and asthma later. This is an active area of ongoing research.
Studies suggest that food allergens may enter through broken eczema skin and trigger allergic sensitization. This is why some experts recommend early introduction of common allergens (like peanut) alongside proactive eczema management. The LEAP study showed that early peanut introduction reduced peanut allergy in high-risk infants with eczema.
If your baby has moderate to severe eczema, your pediatrician may recommend allergy testing before introducing high-risk foods, or may encourage early introduction under guidance. Not all babies with eczema will develop food allergies, but monitoring for reactions when introducing new foods is wise.
By toddlerhood, some children with eczema begin to show signs of respiratory allergies or wheezing. About 30% of children with eczema go on to develop asthma, compared to about 10% of the general population. If your toddler has eczema and begins wheezing, coughing at night, or having breathing trouble, discuss this with your pediatrician.
What Should You Do?
When to take action
- Your baby has eczema but shows no signs of food allergies or breathing issues
- Eczema is well-controlled with moisturizing and your baby is thriving overall
- A family history of eczema, asthma, or allergies is present but your baby is developing normally
- You want to discuss the atopic march and what you can do to reduce your baby's risk
- Your baby has moderate to severe eczema and you are starting solid foods
- You notice your baby wheezing, coughing repeatedly, or having breathing difficulty during colds
- You want to discuss allergy testing given your baby's eczema history
- Your baby has a severe allergic reaction (hives, vomiting, difficulty breathing) after eating a food
- Your baby is wheezing or having significant breathing difficulty
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
Baby Eczema (Atopic Dermatitis)
Baby eczema is extremely common, affecting up to 20% of infants, and is not caused by anything you did wrong. It shows up as dry, red, itchy patches and is very manageable with consistent moisturizing and gentle skin care. Most children outgrow it by school age.
Eczema and Food Allergy Link
Research shows a strong connection between eczema (atopic dermatitis) and food allergies in babies. Babies with moderate-to-severe eczema, especially appearing before 6 months, have a significantly higher risk of developing food allergies. Current guidelines recommend early introduction of allergenic foods (particularly peanut) starting around 4-6 months for high-risk babies with eczema, as early exposure may actually help prevent food allergies.
Identifying Eczema Triggers in Baby
Identifying your baby's specific eczema triggers can significantly improve flare management. Common triggers include dry air, fragranced products, certain fabrics, sweat, saliva, specific foods, dust mites, pet dander, and stress. Keeping a trigger diary can help you spot patterns. Not every baby has the same triggers, so finding your child's unique set takes some detective work.
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.