Which kind of dermatitis do you have?

Atopic dermatitis, also called eczema, causes itchy, dry, scaling skin and recurring flares. Foods can trigger some cases, but soaps, contact allergens and stress also belong on the suspect list. Seborrheic dermatitis often affects the eyebrows, beard, ears and skin around the nostrils, with white to yellowish flakes that can be dry or greasy. Similar looking rashes need different treatment, so get a diagnosis if yours has not been assessed.34

What should you eat?

For eczema, start with balanced meals containing vegetables, fruit, whole grains and sources of healthy fats, such as fish or chia seeds, unless you are allergic to them. Limit heavily processed foods and foods high in sugar, which is not the section of a diet plan that sells cookbooks. A Mediterranean style diet is one option, which is less scenic on a shopping list than it sounds. Do not automatically remove dairy, wheat or gluten just because your face is flaky.1

For seborrheic dermatitis, higher fruit consumption has been linked with a lower risk of the condition, while a Western dietary pattern has been linked with higher risk in women. Regular alcohol use has also been associated with seborrheic dermatitis. These links are not a tested dietary treatment plan; choose balanced eating without expecting a particular food to clear the rash.2

How do you check whether food is a trigger?

  1. 1Record what you eat and drink, when symptoms start and what the symptoms are.
  2. 2Record other possible triggers alongside meals, including skincare products, stress and cold, dry weather.
  3. 3Bring the record to your clinician before making major dietary changes. Discuss whether a specific food needs investigation.
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Food allergy can cause symptoms within seconds or minutes, or hours to days later. Diagnosis combines the history, examination and appropriate tests; a positive test alone can be misleading. A symptom diary helps organise the clues, but it is not a courtroom where the last sandwich automatically loses. Avoid a food once it is identified as responsible, rather than removing whole food groups on suspicion.6

Should you try an elimination diet or supplements?

Avoid an elimination diet unless your healthcare provider prescribes it, especially for children. Unnecessary restrictions can cause nutritional deficiencies and make genuine triggers harder to identify. Deficiencies themselves can cause skin problems. Check with a clinician or dietitian before trying supplements or significantly changing your diet.16

Lower blood levels of zinc and vitamins D and E have been reported in people with seborrheic dermatitis. Taking those supplements is not an established treatment for facial flakes. If a deficiency is suspected, discuss assessment rather than choosing supplements solely because you have dermatitis.2

What should you do for the flakes meanwhile?

For teenage or adult facial seborrheic dermatitis, wash gently twice daily with a fragrance free cleanser or the medicated cleanser your dermatologist recommends. Rinse thoroughly and apply a fragrance free moisturizer afterward. Avoid irritating products and treat flares promptly. Facial treatment can include antifungal creams and medicines that reduce inflammation; follow your clinician's application instructions rather than replacing them with dietary changes.57

There is no established dietary timetable for clearing facial seborrheic dermatitis. Skin treatment usually improves symptoms quickly, although flares can return. Seek medical care if treatment is not helping, symptoms worsen or the condition disrupts daily life. Pain, swelling or draining fluid need assessment because they can signal infection.7

Where this answer comes from

  1. 1Eczema Diet: Foods To Eat, Avoid and Morehealth.clevelandclinic.org
  2. 2Nutrition, Obesity, and Seborrheic Dermatitis: Systematic Reviewpmc.ncbi.nlm.nih.gov
  3. 3Guidelines for the diagnosis and assessment of eczemadermnetnz.org
  4. 4Seborrheic dermatitis: Overviewaad.org
  5. 5Seborrheic dermatitis: Self-careaad.org
  6. 6Food allergydermnetnz.org
  7. 7Seborrheic Dermatitis: Symptoms, Causes & Treatmentmy.clevelandclinic.org