I remember the morning I lifted my wafer and saw it for the first time.
The skin around my stoma was raw. Angry. Red in a way that made my stomach drop. And it burned — not a mild discomfort, but a sharp, stinging burn the second air hit it. I stood there in the bathroom with my heart pounding, trying to remember if this was normal, trying to remember if anyone in the hospital had warned me about this. They hadn't. Or if they had, I hadn't absorbed it through the fog of everything else I was trying to process.
My first instinct was panic. Is something wrong with my stoma? Am I doing something terribly wrong? Should I go to the ER? I didn't know who to call. It was a Saturday morning. I did what most of us do — I Googled it frantically in a bathroom robe and ended up more confused than when I started.
Here is what I wish somebody had told me that morning: peristomal skin problems are the number one complaint among ostomates. You are not doing it wrong. You are not broken. And most of the time — most of the time — there is a solution. Let me give you the guide I desperately needed.
What Is Peristomal Skin?
Peristomal skin is the skin within approximately four inches of your stoma — the area directly under and around your wafer or flange. For most people, this patch of skin never gets a second thought in their lifetime. For ostomates, it is one of the most important pieces of real estate on your body. This skin is constantly exposed to adhesives, barrier products, output, and repeated removal and reapplication of your pouching system. It takes a beating every single day. When it breaks down, everything else gets harder — your seal weakens, leaks become more frequent, and the cycle of damage compounds on itself. Healthy peristomal skin is not vanity. It is the foundation of a functional ostomy system.
The 5 Most Common Peristomal Skin Problems
Not all skin irritation looks the same — and knowing what you're dealing with matters for treatment. Here are the five most common types:
1. Chemical / Irritant Dermatitis
This is the most common peristomal skin problem — and it's almost always caused by output getting under the flange and sitting on the skin. Stool enzymes (especially from an ileostomy) and urine are caustic. Even brief, repeated contact causes the bright red, raw, burning skin many ostomates experience. If your skin looks like a burn and your wafer has been leaking — even slightly — this is almost certainly what you're dealing with.
2. Mechanical Injury
This one is caused by how we handle the equipment — not by output or products. Pulling the wafer off too aggressively, cutting the flange opening too small so it digs into the stoma base, or using strong tape that strips skin on removal are the usual culprits. The skin looks raw, sometimes shiny, with defined borders matching the wafer edge or tape line. It's damage from friction and force, not a reaction to chemicals.
3. Allergic Contact Dermatitis
True allergic reactions to ostomy products are less common than irritant dermatitis, but they happen — and they look different. An allergic rash is usually itchy (irritant dermatitis is more burny), clearly defined in the exact shape of whatever product touched the skin, and may include small blisters or raised bumps. Common triggers: the adhesive in the wafer itself, skin prep wipes or sprays, barrier rings, or ostomy tape. One new product at a time, one change at a time.
4. Folliculitis
Folliculitis is an infection of the hair follicles under the flange — small, pimple-like pustules or red bumps at the base of hair shafts in the peristomal area. It almost always traces back to shaving the area dry, or shaving without proper technique, which causes micro-cuts that bacteria enter. It can also develop when hair is pulled out by the adhesive during removal. It's uncomfortable, and if left untreated, it can worsen.
5. Fungal Infection (Candida)
Candida loves warm, moist, occluded skin — which is exactly what the space under an ostomy flange provides. A fungal rash looks bright red and weepy, with satellite lesions — small red dots scattered around the edges of the main rash. It's especially common in people who have recently taken antibiotics (which wipe out the bacteria that normally keep Candida in check), or in hot, humid climates. If the rash has that scattered satellite pattern, think fungal first.
Warning Signs That Need a WOC Nurse or Doctor
Most peristomal skin problems can be managed at home with the right approach. But some signs mean you need professional eyes on it — quickly. Do not wait on these:
- Bleeding that doesn't stop — a small amount of blood on the stoma itself is normal (it has a rich blood supply), but persistent bleeding from the peristomal skin is not.
- Deep skin breakdown or ulceration — if you can see deeper tissue, or the skin has broken down to a wound rather than just redness or rash, that needs clinical wound care.
- Significant pain — some discomfort is part of healing, but severe or escalating pain in the peristomal area is a sign to call for help.
- Granuloma tissue around the stoma base — small, red, bumpy, moist tissue growing around the junction of the stoma and skin. This is excess tissue growth and requires clinical treatment. Do not try to manage it alone.
When in doubt, contact a WOC nurse. That is literally what they are trained for. A good WOC nurse would far rather see you over something minor than have you wait until it becomes something major.
Prevention First: 7 Habits That Protect Your Skin
Prevention is always easier than treatment. Here are the seven habits that make the biggest difference in keeping peristomal skin healthy:
Get the right fit on your wafer
Your flange opening should be cut to leave approximately ⅛ inch (about 2–3 mm) of clearance around your stoma. Too small, and the edge irritates or cuts into stoma tissue. Too large, and exposed skin is unprotected. Re-measure regularly — stomas change size in the first months post-surgery.
Build a change schedule that matches your output
Ileostomy output is high-enzyme and damaging — you may need to change every 2–3 days. Colostomy output is less acidic, and 3–5 days may work. Don't stretch wear time past the point where your adhesive shows signs of loosening or you can smell leakage. The goal is changing before you have to, not after.
Use skin barrier wipes or spray before applying your flange
A skin barrier wipe (like Cavilon or Skin Prep) creates a thin, protective film on your peristomal skin before the adhesive goes on. It gives the adhesive something to grip AND protects your skin from the adhesive itself. This is one of the single most effective steps for people who struggle with mechanical injury.
Use the push-pull removal technique — never rip
Peel one edge back slowly, then use your other hand to gently push the skin away from the adhesive as you lift — "push the skin, not the wafer." An adhesive remover spray or wipe (like Niltac or Remove) dissolves the bond without force. Never dry-peel a wafer unless you want to strip your skin every single time.
Shave with an electric trimmer — never dry
If you have hair in the peristomal area, it needs to go — hair under the flange breaks the seal and causes folliculitis when pulled. Use an electric trimmer (safer than a razor) or, if you prefer a razor, use shaving foam and a fresh blade. Never shave the area dry.
After showering, dry thoroughly before applying
Moisture is the enemy of adhesion. After showering or bathing, pat the peristomal skin completely dry — and then wait a minute or two. Applying a flange to skin that's still slightly damp is one of the most common causes of early seal failure and skin problems. Some people use a hair dryer on a cool setting to make sure.
Watch for product reactions — patch test new products
Before switching to a new wafer brand, barrier ring, or tape, apply a small amount to your inner arm for 24 hours. If your skin reacts there, it will almost certainly react under your flange. When you do switch products, change one product at a time so you can identify the culprit if a reaction occurs.
Treatment When Prevention Didn't Work
If you're already dealing with a skin problem, here's what to do based on which type you're facing:
Irritant / Chemical Dermatitis
Apply ostomy barrier powder (like Coloplast or Hollister barrier powder) directly to the wet, weeping skin, pat gently, then brush off the excess — this "dries" the surface so your flange can still seal. Switch to a convex wafer if your stoma sits flat or recessed (convexity helps push output away from skin). Shorten your wear time. Re-check your cut-to-fit size — this is usually the root fix.
Mechanical Injury
Switch to a gentle adhesive remover (Niltac, Remove, or similar) immediately — stop dry-peeling now. Apply a thin skin protectant or barrier wipe to the affected area and let it heal. Re-evaluate your cut size if the injury is at the stoma edge. Let the adhesive remover do the work every single change.
Allergic Contact Dermatitis
Identify the culprit by process of elimination — change only one product at a time. Look for hypoallergenic options from a different manufacturer for whichever product is causing the reaction. Your WOC nurse or supply company nurse educator can help you source alternatives. Until the allergen is removed, no amount of treatment will fully resolve the rash.
Folliculitis
Clean the area gently with an antibacterial wipe before each pouch change. Switch to an electric trimmer if you've been using a razor, and always wet the area before any razor use. Mild cases often resolve once you fix the shaving technique. If the bumps are spreading, becoming painful, or developing pus, see a doctor — you may need a topical or oral antibiotic.
Fungal Infection (Candida)
Apply a thin layer of antifungal powder (like Nystatin powder, if prescribed, or an OTC clotrimazole powder) to the affected skin, then seal with a barrier wipe before applying your flange. The antifungal powder under the barrier treats the infection while still allowing adhesion. If the rash is severe, spreading, or not responding within a week, see a doctor — some Candida infections need prescription-strength treatment.
When It's Not Your Fault
I need to say this plainly: peristomal skin problems happen to experienced ostomates all the time. This is not a beginner problem. This is not a “you're doing it wrong” problem. Output type changes with your diet, your health, and your medications. Weight fluctuations change your body contours and how your wafer sits against your skin. Hormonal shifts affect skin sensitivity. Physical activity increases sweat under the flange. Humid summer weather changes adhesion behavior entirely. Antibiotics wipe out your skin's bacterial defense against fungal overgrowth.
You can be doing everything right for months, and then one week — new medication, vacation, heat wave, stress — your skin flares up anyway. That is not failure. That is the reality of living with an ostomy in a body that keeps changing. The goal is to respond skillfully when it happens, not to feel shame that it happened at all.
Your skin is not failing. Your system might just need adjusting. That's what a WOC nurse is for — and if you don't have one, that's what I'm here for.
I spent too many early months feeling like every skin problem was proof that I couldn't manage my ostomy — that I wasn't good enough at this, or that maybe my body just didn't work right. It took me a long time to understand that troubleshooting is not a sign of weakness. It is just the ongoing work of living with a stoma in a real body.
You are allowed to ask for help. You are allowed to not have it all figured out. And you are absolutely allowed to have a bad skin week without it being a referendum on how far you've come.
— Stephanie Crawford, Ostomy Survivor & Founder, Beyond the Bag
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