Category Archives: immune system

How safe are topical steroids during pregnancy ?






An estimated 6% of pregnant women receive prescription topical corticosteroids (TCS), which are pregnancy risk category C. Animal studies show teratogenic effects, but data are limited and conflicting regarding use in pregnant women. Investigators performed a retrospective cohort study using … Continue reading

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Having a dog reduces risk for childhood eczema (atopic dermatitis)…






A meta-analysis indicates that early exposure to dogs, but not cats, decreases risk for childhood atopic dermatitis by 25%. The hygiene hypothesis was proposed in 1989 as a possible explanation for the rapidly increasing prevalence of atopic dermatitis (AD) and … Continue reading

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Hives after cold exposure (cold urticaria)…






From Dermatology Daily of the American Academy of Dermatology: Bloomberg News (Jan 12, Cortez) reports, “A single gene mutation causes some immune system cells to shut down at body temperature and sends others into overdrive in the cold, creating a mix … Continue reading

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