OHMRX Patch Fit Guide

Your step‑by‑step guide to applying CGM patches for secure, comfortable, long‑lasting wear.

1. Why Patch Fit Matters

A properly fitted patch protects your sensor, improves adhesion, and keeps your readings stable through:

• Workouts

• Showers

• Sleep

• Daily movement

A good fit = fewer replacements, fewer failures, and more confidence.

2. Choose the Right Patch

OHMRX patches are designed for:

• Dexcom G7 — pre‑cut center opening

• Libre 3 — flexible, low‑profile fit

• Sensitive skin — hypoallergenic, latex‑free

• Active lifestyles — waterproof + sweat‑resistant

Select the patch that matches your device.

3. Step‑by‑Step Patch Application

Step 1 — Prep Your Skin

Follow the Skin Prep Guide:

• Clean

• Dry

• Apply OHM PREP

• Let dry fully

This ensures maximum adhesion.

Step 2 — Expose the Patch Backing

Peel the backing halfway so you can hold the patch without touching the adhesive.

Step 3 — Center the Patch Over Your Sensor

Align the pre‑cut opening directly over the CGM. The sensor should sit cleanly inside the center window.

Step 4 — Smooth From Center Outward

Press gently around the sensor first. Then smooth outward toward the edges to remove air pockets.

Step 5 — Seal the Edges

Use your fingertips to press the perimeter for 10–15 seconds. This activates the adhesive and prevents early lifting.

4. Tips for a Perfect Fit

These small adjustments make a big difference:

• Apply patches to dry skin only

• Avoid applying right after a shower

• Press edges firmly

• Avoid bending the arm for 1–2 minutes

• Wait 1 hour before heavy sweating

• Replace patches if edges lift

5. Troubleshooting Fit Issues

Edges lifting early?

• Use OHM PREP

• Avoid lotions

• Apply to a flatter area of the arm

• Press edges longer

Patch not lasting 10–14 days?

• Apply before bed

• Avoid applying after a hot shower

• Use Skin Prep Guide steps every time

Irritation or redness?

• Use OHM PREP (alcohol‑free)

• Rotate sites

• Remove slowly with warm water or oil

6. Removing Your Patch

To remove comfortably:

• Loosen an edge with warm water

• Peel slowly in the direction of hair growth

• Use oil or adhesive remover if needed

• Clean the area before applying a new patch

7. Recommended Products

Dexcom G7 Sensor Covers Pre‑cut, waterproof, hypoallergenic.

Libre 3 Sensor Covers Flexible, breathable, skin‑safe.

OHM PREP Skin Prep Wipes Alcohol‑free, irritation‑reducing, adhesion‑boosting.

8. More Resources

For deeper guidance:

• Skin Prep Guide

• CGM Adhesive Tips

• How It Works