Nipple fissures can heal within a few days to two weeks, even while you continue breastfeeding, as long as you address what caused the crack and keep the wound moist. The key is treating the root cause (usually latch problems) while protecting the tissue so it can repair between feeds. Letting a fissure air-dry and scab over actually slows things down. Research dating back to the 1960s showed that wounds kept in a moist environment heal roughly twice as fast as those left to dry out.
Fix the Latch First
A nipple fissure is almost always a symptom of something mechanical. The most common cause is a shallow latch, where the baby clamps down on the nipple itself instead of taking a deep mouthful of breast tissue. If you fix the wound but don’t fix the latch, the fissure will reopen at every feed.
Signs your baby’s latch needs adjustment include a pinched or lipstick-shaped nipple after feeding, a clicking sound during the feed, or pain that lasts the entire session rather than fading after the first few seconds. Try bringing the baby to the breast chin-first, aiming the nipple toward the roof of their mouth, and waiting for a wide-open mouth before latching. If your baby’s lower lip curls inward instead of flanging out, gently pull it down with your finger.
In some cases the problem isn’t technique but anatomy. Tongue-tie (ankyloglossia) restricts how far a baby’s tongue can extend, which limits their ability to latch deeply. Clues include an indentation or heart shape at the tip of the baby’s tongue and pain that persists no matter how carefully you position them. A lactation consultant or pediatrician can evaluate tongue movement and coordination and discuss whether a release procedure would help.
Keep the Wound Moist Between Feeds
The old advice to “air out” cracked nipples and let them dry is outdated. Moist wound healing prevents scab formation. A scab forces new tissue to grow underneath and around it, which takes longer and can crack open again during the next feed. Keeping the area humid lets the skin close from the bottom up, which is faster and less painful.
You have several options for maintaining moisture:
- Hydrogel pads. These cool, gel-based dressings sit over the nipple between feeds. In a randomized trial of 106 breastfeeding mothers, women using hydrogel dressings reported significantly greater pain reduction by day 10 compared to those using lanolin. They also stopped needing treatment sooner, and none developed breast infections during the study, while the lanolin group had eight.
- Medical-grade lanolin. A thin layer after each feed keeps the fissure from drying out. It doesn’t need to be wiped off before the next feed. Lanolin is widely available and inexpensive, but the evidence suggests hydrogel pads may work faster for pain relief.
- Expressed breast milk. Rubbing a few drops of your own milk over the fissure and letting it absorb provides mild antibacterial and moisturizing benefits. This works best for very minor cracks.
- Silver nursing cups. Small cups made of pure silver sit inside your bra and create a moist, antimicrobial environment. In one clinical study, women who used silver cups from the start of breastfeeding had fissure rates as low as 2.6% by day seven. Among women who started using them after fissures had already developed, about 63% healed within 15 days and most of the rest healed by 30 days.
Saline Soaks for Pain and Cleaning
A warm saline rinse before or after feeding can soften any dried milk or crusting on the fissure and soothe soreness. The ratio recommended by McGill University’s lactation protocol is one teaspoon of salt dissolved in one cup of warm water. You can dip your nipple into a small cup of the solution or soak a clean cloth and hold it against the area for a few minutes. Pat dry gently afterward and apply your chosen moisturizer.
Managing Pain During Feeds
Feeding on a cracked nipple hurts, and pain can interfere with milk letdown. A few strategies make feeds more manageable while you heal.
Start each feeding session on the less injured side. By the time you switch to the sore breast, your baby’s initial aggressive sucking has slowed and letdown has already started, which means less friction on the fissure. If both nipples are cracked, begin on whichever side is less painful.
Experiment with different positions. A position that changes the angle of your baby’s mouth on the nipple can shift pressure away from the fissure. The “football hold” or side-lying position sometimes helps when the standard cradle hold puts direct pressure on the wound. After feeding, break the suction by sliding a finger into the corner of your baby’s mouth rather than pulling them off, which can re-tear healing tissue.
If the pain is severe enough that you need to rest one side, you can pump that breast for 24 to 48 hours to maintain supply while the fissure gets a head start on healing. Use the lowest effective suction setting on your pump, since high suction can cause additional trauma.
When a Fissure Gets Infected
An open crack in the skin is an entry point for bacteria, most commonly Staphylococcus aureus, which lives on normal skin. A fissure that isn’t healing or is getting worse despite good latch and moist wound care may be infected.
Watch for these signs: redness that spreads in a wedge shape across the breast, warmth or swelling in the tissue around the nipple, fever or flu-like symptoms (body aches, nausea), discharge that looks like pus, or searing pain that radiates toward your shoulder blades. Tender or swollen lymph nodes in the armpit on the same side are another red flag. These symptoms can signal mastitis or a breast abscess, both of which need prompt medical treatment.
For fissures that resist healing and show signs of infection, providers sometimes prescribe a compounded ointment that combines an antibiotic, a mild steroid to reduce inflammation, and an antifungal. This covers multiple possible causes of persistent nipple damage at once. The ointment is applied in a thin layer after feeds and does not need to be wiped off before nursing.
What a Typical Healing Timeline Looks Like
Nipple skin has a rich blood supply, and superficial fissures can close in two to five days once the cause is corrected. Deeper cracks, or those complicated by infection or ongoing latch problems, may take one to three weeks. The wound typically looks worse before it looks better because moist healing doesn’t produce a visible scab, so the area may appear raw even as new tissue forms underneath.
If you’ve been using moist wound care, corrected the latch, and the fissure hasn’t improved after a week, or if it keeps reopening at every feed, that’s a strong signal to get hands-on help from a lactation consultant. Persistent fissures in the same spot often point to an unresolved anatomical issue like tongue-tie, a sucking pattern that needs retraining, or an infection that’s preventing tissue repair.