Diabetes Technology — Skin Care

Skin Care for CGM and Pump Sites

Adhesives, sensors, tubing, sweat, and constant rotation make skin the frontline of life with diabetes technology. Good site care is what keeps devices working and skin healthy.

Why skin care matters in diabetes technology

Whether wearing a CGM, an insulin pump, or both, skin is doing more than its fair share of work. Adhesives, sensors, tubing, sweat, and constant rotation put skin under sustained load — especially in children and young people, who have limited skin surface to rotate across.

From rashes and itching to more serious problems such as lipodystrophy or infections, the skin side of diabetes technology is often underplayed. Consistent skin care is not just about comfort — it is part of making sure devices work properly and last their full wear life.

Child wearing CGM and insulin pump technology on skin, illustrating device adhesion and skin load

CGM Pump

Expert resources — go deeper

The big skin problems — what tends to happen

Most people using diabetes devices run into one or more of these issues over time:

Irritation or rashes — caused by adhesive allergy, sweat trapping, or allergens such as acrylates in device adhesives.
Dry, itchy skin or eczema — especially when sites are not rotated adequately or skin is not cleaned and moisturised between wears.
Lipohypertrophy or lipoatrophy — tissue swelling or hollowing under insulin delivery sites from repeated use of the same zones.
Scars, wounds, or skin tears — often from hurried removal or poor healing after inadequate preparation.
Infections — warm, red, painful areas that may need antibiotic treatment and clinical review.

The majority of these are preventable. Prevention consistently beats treatment.

Overview infographic of the GNL T1D skincare guide showing the five key principles

1. Choosing the right site

Site placement determines a large proportion of skin outcomes. Too close to joints or scars means manufactured irritation. Too repetitive with one zone means tissue breakdown.

Flat, fatty zones work best: upper arms, buttocks, thighs, flanks.
Avoid areas that bend or rub, such as waistbands or bony creases.
Rotate deliberately: use 6–10 different zones and give each at least a week off.
Keep at least 1–2 inches away from previous sites or current insulin delivery areas.

2. Preparing the skin

Preparation does not need to take long, but doing it consistently makes a substantial difference to comfort and device lifespan.

Clean with oil-free soap and water. Skip alcohol-based prep wipes if skin is sensitive.
Dry the skin thoroughly — no dampness and no steam from a recent shower.
For sweaty skin: apply a thin layer of solid, unscented antiperspirant to the site, leave for 10 minutes, then wipe off before applying the device.

For people prone to reactions:

Barrier wipes (for example Cavilon, Skin Tac).
Barrier films such as IV3000 or Tegaderm placed under the device for sensitive skin.
Fluticasone nasal spray is sometimes used off-label, as a clinician-guided strategy. One to two sprays on the area, allowed to dry completely before applying the device.

3. Extra tape — use wisely, not automatically

Where possible, avoid extra tape to limit total skin coverage. But sometimes adhesives do not hold well enough, and sometimes they hold too firmly.

Over-patches can improve adhesion (for example RockaDex, GrifGrips, Simpatch).
Kinesiology tape or elastic wraps such as Coban are useful for sport and high-sweat situations.
Where additional tape is needed, picture-frame around the device edges rather than covering the entire adhesive surface.

4. Removing without causing damage

Peeling off a stuck-on sensor should not result in broken skin. Most tears come from pulling upward and away rather than folding back slowly.

Use baby oil, olive oil, or adhesive removers such as Lift Plus (PIP code: 3188505), Uni-Solve, or TacAway to loosen the adhesive before removal.
Start at a corner. Push the skin down with one hand and fold the tape slowly back over itself.
Go low and slow — do not pull up or away.
Once removed, clean the site and moisturise.

5. Post-wear skin recovery

Whether skin feels fine or slightly irritated after removing a device, what happens between wears determines the condition of the site next time.

Use a rich, unscented moisturiser daily, especially on resting sites.
Leave used sites alone for at least a week before reusing them.
Watch for infection signs: heat, pus, spreading redness, or increasing pain.

When things go wrong

Sometimes, despite good preparation, skin problems still develop. Act early.

Skin issue	First steps	Then consider
Redness or rash	Clean, moisturise, use barrier wipes	Clinician-guided: fluticasone spray or mild topical steroid
Eczema	Barrier film under device (IV3000 or Duoderm)	Short course topical steroid — clinician-guided
Persistent itching	Moisturise and add barrier film	Topical steroid or antihistamine — clinician-guided
Lipohypertrophy	Rotate sites more effectively; rest the affected zone	Avoid zone for 6 or more weeks; refer if severe
Wound or skin tear	Oil-assisted removal in future; rest site; moisturise and protect	GP review if not healing or infection is suspected

Practical summary

Pick low-rub sites and rotate across 6–10 zones, giving each at least a week off
Soap–Water–Dry: fully dry the skin before applying any device
Add barriers only when needed — change one variable at a time
Remove low and slow, with oil or adhesive remover, folding the tape back on itself
Moisturise resting sites and allow them to recover properly

This content is for educational exploration only. It describes average responses and general principles. It is not medical advice and cannot replace individual clinical guidance from your diabetes care team.