Silver nipple shields, often called silver nursing cups, are small cup-shaped pieces of silver that sit over your nipples between breastfeeding sessions to help heal cracked or sore skin. You place them inside your bra after each feeding, and the silver works against bacteria while keeping the damaged skin in a moist healing environment. They’re simple to use, but getting the sizing, cleaning, and timing right makes a real difference in how well they work.
How Silver Cups Work
Silver has natural antimicrobial properties. When a silver cup sits against damaged nipple tissue, silver ions interact with bacteria on the skin’s surface and slow their growth. At the same time, the cup creates a barrier between your healing skin and the fabric of your bra or breast pad, which prevents friction from reopening cracks and fissures every time you move.
A small randomized trial of 40 breastfeeding women with nipple fissures, published in the Journal of Obstetric, Gynecologic & Neonatal Nursing, found that women using silver caps experienced significantly faster pain resolution at days 7 and 15 compared to those receiving standard breastfeeding care. The silver group also rated the treatment more favorably. Results weren’t different at day 2, so don’t expect overnight relief. The cups support a healing process that takes roughly a week to show clear improvement.
Choosing the Right Size
Most brands offer two sizes. The standard size fits a C cup or smaller bra, with an areola diameter under 4.5 centimeters. The XL size is designed for a D cup or larger, or an areola measuring 4.5 centimeters or more. To measure your areola, use a soft measuring tape or ruler across the widest point of the colored skin around your nipple. The cup should sit comfortably over your nipple and areola without pressing into the surrounding breast tissue or feeling loose enough to shift around.
925 Sterling Silver vs. 999 Pure Silver
You’ll see two purity levels when shopping. Sterling silver (925) is 92.5% silver mixed with copper for durability. It holds its shape well, resists denting, and costs less. Pure silver (999) is 99.9% silver, which makes it softer and more likely to conform to your breast shape over time. That softness can feel more comfortable on very sore nipples, and the near-absence of alloy metals reduces the chance of skin irritation if you’re sensitive to copper.
In terms of antimicrobial function, the practical difference between the two is small. Both work well for most people. If you have known metal sensitivities, 999 is the safer bet. If you want something that will hold up through months of daily use without denting, 925 is more practical.
Step-by-Step Use
After you finish breastfeeding, gently pat your nipple dry or let it air-dry for a moment. If you like, express a drop or two of breast milk and spread it over the nipple before placing the cup. Breast milk itself has healing properties, and the silver cup seals it against the skin.
Place the cup directly over your nipple so it sits like a small dome, then put your bra on over it. The bra holds the cup in place. The fit should feel snug enough that the cup doesn’t slide around but not so tight that it presses uncomfortably into your skin. Wear the cups between every feeding session throughout the day and overnight if you find them comfortable. When it’s time to nurse again, simply remove the cup, give it a quick rinse, and latch your baby directly to the breast as usual.
If only one nipple is damaged, you only need to use a cup on that side. There’s no benefit to wearing one on healthy skin.
Cleaning and Maintenance
Daily care is minimal. Rinse the cups with warm water between feedings. That’s enough for routine cleaning since silver naturally resists bacterial buildup. If you want a deeper clean, use a mild hand soap, not dish detergent or anything with bleach. Avoid sterilizing tablets, harsh chemical cleaners, and abrasive scrubbers, all of which can damage the silver surface.
Over time, the cups will develop a dark tarnish. This is normal oxidation and doesn’t affect how the cups work. To remove it, mix one teaspoon of baking soda with a few drops of water to form a paste. Rub the paste over the cups gently, rinse with warm water, and pat dry. They’ll look like new.
When to Be Cautious
Silver cups create a warm, moist environment against the skin, which is exactly what helps healing. But that same environment can encourage yeast overgrowth. La Leche League identifies extended use of silver nipple cups as a factor that can favor thrush (a Candida infection). If your nipples start looking unusually pink, shiny, or develop fine white scaling, or if you notice a burning pain that persists even between feedings, those are signs of possible thrush. Remove the cups and address the infection before continuing use.
The combination of heat, moisture, and friction that trapped cups can create also means you should pay attention to how your skin responds. If irritation worsens rather than improves over the first week, the cups may not be right for your situation.
What Silver Cups Don’t Replace
Silver nursing cups treat the symptom, not the cause. Cracked and painful nipples during breastfeeding are most often caused by a shallow latch, tongue tie, or positioning issues. The cups can give your skin a chance to heal while you continue nursing, but if the underlying latch problem isn’t corrected, the damage will keep recurring once you stop using them. If your pain is severe or your nipples aren’t improving after a week or two of use, a lactation consultant can evaluate your baby’s latch and identify what’s causing the breakdown in the first place.