Scabies during pregnancy

By trimester

Weeks 1–13

1st trimester

Confirm the cause before applying a pesticide medicine to a widespread rash. Pregnancy exposure data are strongest for topical permethrin, while CDC says the safety of oral ivermectin in pregnancy has not been established.

Weeks 14–27

2nd trimester

Apply the clinician-selected topical product exactly as directed and coordinate same-time care for household members and close skin contacts. Clean recently used fabrics on the same cycle so reinfestation is less likely.

Weeks 28–birth

3rd trimester

Persistent itching alone does not necessarily mean active mites because itch can last several weeks. New burrows, new pimple-like lesions, crusting, or itch beyond two to four weeks merits reassessment before another application.

What does the evidence show for scabies?

• MotherToBaby describes scabies as an intensely itchy mite infestation spread mainly through close contact. Scabies itself is not passed directly to the fetus, and published human pregnancy information has not shown a specific pattern of adverse pregnancy outcomes. 1
• CDC lists permethrin 5% cream as an established scabies medicine and notes that oral ivermectin has similar efficacy but unestablished pregnancy safety. Lindane should not be used by pregnant or breastfeeding people. 2
• CDC advises washing recently used bedding and clothing in hot water and drying hot, or sealing items that cannot be washed for several days. Close contacts should be notified, and close skin contact should pause until the care course is complete. 3
• An international clinical guideline reports that skin scraping microscopy has high specificity but limited sensitivity, so a negative scraping does not exclude scabies. Clinical history, lesion distribution, contact history, dermoscopy, or microscopy may all contribute to confirmation. 4
• Itching can continue for several weeks after successful mite clearance. CDC advises reassessment when itching lasts beyond two to four weeks or when new burrows or new pimple-like lesions appear, rather than assuming every residual itch is active infestation. 3

When should I call my provider about scabies?

Seek prompt medical care for fever, rapidly spreading redness, warmth, swelling, pus, severe pain, or red streaking that may signal a bacterial skin infection. Extensive crusting, involvement of an immunocompromised household member, eye exposure to a topical product, breathing trouble, facial swelling, or another severe medicine reaction needs urgent assessment. Whatever the pattern, any symptom that feels beyond your usual range is a reason to call: obstetric teams expect these questions and would rather hear early than late.