Phototherapy for Eczema During Pregnancy: Five Questions to Ask First

Dr. Arsy Editorial Team · November 9, 2026

Medical phototherapy is a prescribed treatment, not a reason to use tanning beds or deliberately sunburn eczema. If eczema is difficult to control during pregnancy, a dermatologist and maternity clinician can discuss whether supervised light treatment is appropriate for the individual. ^{[7][9][14][22]}

What is being considered?

Phototherapy uses a defined type and dose of ultraviolet light under clinical supervision. Different methods have different evidence and precautions. Eczema studies and reviews include narrowband UVB and other forms; a result for one method should not be transferred to another, to sunlight or to a home device without the clinician's direction. ^[7][22]

A Cochrane review evaluated multiple phototherapy approaches in atopic eczema. Study design, treatment duration, comparator and reported outcomes differed. Ask the care team what a proposed treatment is expected to accomplish and what uncertainty remains for pregnancy. ^[22]

Five questions to take to the appointment

1. Which exact type of phototherapy is being proposed and why?
2. How many visits might be needed, and how will treatment response be assessed?
3. What eye and skin protection, monitoring and possible side effects should I expect?
4. Does my pregnancy, medicine list or history of skin cancer change the plan?
5. Should my maternity team review folate intake or monitoring with this treatment?

A review of folate and phototherapy reported mixed findings for narrowband UVB and discussed possible dose-related effects. It does not mean every patient will develop folate deficiency. Your clinician can decide whether your prenatal supplementation or testing needs review; do not change supplement doses based only on this article. ^[23]

Keep separate goals in view

Skin-care products can help with dryness and comfort, while phototherapy and prescription treatments address different parts of an eczema plan. The treatment choice requires a discussion of expected benefit, alternatives, the patient's preferences and available pregnancy-specific evidence. Do not stop a current prescription without a clinician's guidance. ^{[7][8][9][10][14]}

New severe itch during pregnancy, particularly involving palms or soles, needs urgent maternity assessment rather than a change in light exposure. Painful blisters, fever or rapidly worsening skin also warrant prompt medical care. ^[19][20]

How to read the evidence

The references include observational cohorts, systematic reviews, clinical guidance and reviews of medication safety. They answer different questions and have different limits. A group association, a case report and an expert recommendation are not interchangeable; clinicians use the current evidence together with the patient's history and preferences. ^{[2][7][8][9][12]}

Care for dry, sensitive skin

Explore Dr. Arsy™ Hydration Recovery Moisturizer #003, 4 oz, a fragrance-free moisturizer for dry, sensitive and eczema-prone skin. The pregnancy and lactation studies listed here did not test #003, and they do not establish its safety for infant contact or that it treats eczema. Ask your clinician about your individual routine.

Related reading

• Eczema or Another Cause of Itching in Pregnancy? When to Call Your Care Team
• Does Eczema Affect Fertility? What a Danish Birth Cohort Can—and Cannot—Answer
• Eczema and Pregnancy Outcomes: Why a Research Association Is Not a Prediction
• Eczema Care While Breastfeeding: Questions Beyond a Nipple Rash
• Baby eczema prevention: what major studies say
• Eczema and sleep: research for families

Research and clinical references

1. Danish birth-cohort study: atopic dermatitis and time to pregnancy.
2. Pregnancy in women with eczema: systematic review.
3. Adverse pregnancy outcomes in eczema: systematic review.
4. Taiwan population study of eczema and pregnancy outcomes.
5. Atopic dermatitis and pregnancy: clinical review.
6. Pregnancy and postpartum skin disease: classification review.
7. Pregnancy and postpartum skin disease: management review.
8. 2026 guideline update on eczema, pregnancy and lactation.
9. EuroGuiDerm living update: eczema systemic care.
10. Northern European consensus: conception, pregnancy and breastfeeding.
11. Dermatologic medicines in pregnancy: safety review.
12. Dermatologic medicines in lactation: safety review.
13. Management of allergic skin disorders in pregnancy.
14. Atopic dermatitis and the childbearing years.
15. Research review: immunomodulating eczema treatments in pregnancy.
16. European task-force position on parental eczema care.
17. Dermatology biologics during pregnancy and breastfeeding.
18. U.S. study of systemic eczema medications in pregnancy.
19. NHS: itching and cholestasis during pregnancy.
20. Pregnancy skin conditions: diagnosis and management.
21. NHS specialist pharmacy: topical corticosteroids while breastfeeding.
22. Phototherapy for eczema: Cochrane review.
23. Phototherapy and folate: review of the evidence.

Educational information only; not a diagnosis or personalized obstetric or medical advice. Cited researchers and organizations do not endorse Dr. Arsy products.