How to Treat a Nipple Bleb (Milk Blister)

Written by: Courtney Miller, RN, BSN, IBCLC

If you’re breastfeeding or pumping and suddenly notice a tiny white or yellow spot on your nipple that feels surprisingly painful, you may be dealing with a nipple bleb, also called a milk blister. While small, these can cause significant discomfort and may even contribute to clogged ducts or mastitis if not addressed.

At The Better Boob Lactation, we see nipple blebs often, and the good news is that there are ways to help relieve them safely and effectively.

What Is a Nipple Bleb?

A nipple bleb is a small white, clear, or yellow blister that forms over the opening of a milk duct. It can feel like:

• Sharp pain during nursing or pumping

• A “glass shard” sensation

• Tenderness in one area of the nipple

• Burning or shooting pain

• A visible white dot on the nipple

Sometimes milk flow from that duct becomes blocked, leading to breast fullness, plugged ducts, or inflammation.

Common Causes of Milk Blebs

Milk blebs can happen for several reasons, including:

• Oversupply or engorgement

• Inflammation in the breast tissue

• Poor latch or nipple trauma

• Pump flange issues

• Exclusive pumping

• Recurrent clogged ducts

• Pressure on the breast from bras or sleeping positions

Sometimes recurrent blebs can be linked with ongoing inflammation deeper in the duct system.

How to Treat a Nipple Bleb

Warm Epsom Salt Soaks

One of the most recommended first steps is soaking the nipple in warm water with Epsom salt.

A common recommendation is:

• 2 teaspoons Epsom salt

• 1 cup warm water

Soak several times daily to help soften the skin and encourage the duct opening to clear.

You can:

• Use a small bowl

• Use a Haakaa filled with warm salt water

• Apply warm compresses afterward

Some providers also recommend warm Epsom salt “socks” or compresses directly over the nipple area before feeds or pumping sessions.

Moist Heat Before Feeding or Pumping

Applying a warm washcloth before nursing or pumping can help soften the bleb and improve milk flow.

The warmth may allow the duct opening to naturally release while baby nurses.

Olive Oil to Soften the Skin

A simple but effective option:

• Soak a cotton ball with olive oil

• Place it inside your bra against the nipple between feeds

This can help soften thickened skin over the duct opening.

Gentle Exfoliation

After soaking and warming the area, gentle friction with a soft washcloth may help remove skin covering the duct.

Some lactation providers may also suggest gently rubbing the area after soaking to help encourage the duct to open naturally.

Avoid aggressively scrubbing or trying to “dig out” the bleb. Trauma can worsen inflammation and delay healing.

Potato Compresses

I know this one sounds crazy, but IT WORKS! Another home remedy sometimes recommended is applying a thin slice of white potato or fork-scraped potato over the nipple for about 20 minutes. Some parents report that this helps reduce swelling and discomfort.

Continue Nursing or Pumping

Milk removal is important. Frequent effective milk removal can help prevent worsening blockage.

If nursing is too painful:

• Start feeds on the less painful side first

• Adjust latch positioning

• Check pump flange sizing

• Consider temporary pumping adjustments

  
  

Anti-Inflammatory Support

Because nipple blebs are often connected to inflammation, reducing inflammation can play a major role in healing.

Some providers may recommend:

• Occlusive dressing with 1% hydrocortisone cream covered with plastic wrap for short-term use

• Prescription steroid creams such as triamcinolone in more severe or persistent cases

These treatments are intended to decrease inflammation and should only be used under guidance from your healthcare provider or IBCLC.

Should You Pop a Milk Bleb?

In general, we do not recommend attempting to pop or cut open a bleb yourself at home.

While older recommendations sometimes included sterile needle “unroofing,” more recent guidance focuses on reducing inflammation and protecting nipple tissue first. Improper opening can increase:

• Infection risk

• Tissue trauma

• Scarring

• More inflammation

In some persistent cases, a medical provider may use a sterile needle or lancet to help open the skin safely, followed by hand expression. This should only be performed by a trained professional.

Address the Underlying Cause

This is the step many parents miss.

If blebs keep recurring, it’s important to determine why they are happening. Common contributors include:

• Shallow latch

• Tongue tie

• Oversupply

• Incorrect flange size

• Excessive pumping

• Breast inflammation

Without addressing the root cause, blebs often return.

When to Reach Out for Help

Contact an IBCLC or healthcare provider if:

• The bleb lasts more than several days

• You develop fever or flu-like symptoms

• You have recurrent clogged ducts

• Pain is severe

• Milk supply decreases

• You notice redness spreading on the breast

• The area appears infected

  
  

Prevention Tips

To help prevent future nipple blebs:

• Ensure a deep latch

• Use properly fitted pump flanges

• Avoid unnecessary pumping

• Treat oversupply if present

• Vary feeding positions

• Avoid tight bras or pressure on the breast

• Address recurrent inflammation early

Some parents with recurrent plugged ducts may benefit from sunflower lecithin supplementation, though you should discuss supplements with your healthcare provider first.

Need Help?

Nipple blebs can be incredibly painful, but you do not have to struggle through them alone. An IBCLC can help identify the root cause, improve milk flow, assess latch and flange sizing, and create a personalized treatment plan.

At The Better Boob Lactation, we help families navigate breastfeeding challenges with evidence-based, compassionate support, whether you’re nursing, pumping, or both.