Dexcom Users

For users of a Dexcom Continuous Glucose Monitoring ("CGM") device

Just as a reminder with the recent release of the new Dexcom G4 to the US market--it is NOT okay to post about previous models or older sensors as being 'for sale' on this site.

It is a violation of the Terms of Use because it is a prescription device, and any such efforts will unfortunately be removed.

We encourage you to donate supplies to non-profits such as the Charles Ray III Diabetes Association (, which accepts unexpired glucometer and insulin pump supplies, or alternatively you may talk to your physician's office or other local medical group to discuss donating them to those in need of assistance.

Thank you all for kindly refraining from this activity.

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Rich demos insertion of a G4 sensor- video

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Diabetes Forum

A Little Unscientific G4 Research

Started by Elizabeth. Last reply by bort269 9 hours ago. 71 Replies

Sensor placement

Started by Dave. Last reply by SiggyB yesterday. 45 Replies

Dexcom Accuracy not as good as it used to be

Started by Sharif Munshi. Last reply by Denise yesterday. 7 Replies

Adhesive allergy

Started by duckatect. Last reply by Melissa M. yesterday. 7 Replies

OUCH!!!! Very painful insertion just now

Started by Gayle Kodimer Mckenna. Last reply by Bambi on Tuesday. 25 Replies

Blood on Sensor Insertion

Started by markeeezy. Last reply by Dondi on Tuesday. 6 Replies

Chasing sugars what works for you?

Started by dishers. Last reply by Dondi on Tuesday. 5 Replies

? About ???

Started by dishers. Last reply by Joern on Sunday. 9 Replies


Started by Aussie. Last reply by Ellie Apr 11. 14 Replies

delivery times?

Started by dishers. Last reply by dishers Apr 8. 2 Replies

Downloading data

Started by Aussie. Last reply by Andy Apr 3. 3 Replies

dexcom studios profile transfer

Started by dishers. Last reply by dishers Apr 1. 14 Replies

Stress and Sugars

Started by Aussie. Last reply by Dori S Mar 26. 13 Replies

Comment Wall


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Comment by Rickst29 on April 26, 2011 at 12:41pm
I don't think that a change in the adhesive would require notice to the FDA. I don't have time to look, but if any of you DO have time to go hunting, and it turns out the a change was documented, then it would probably be in the PMA section as a 'minor' manufacturing change.

I don't get itching or "serious" IR problems anymore. (Because I use Skin-Prep underneath my Sensor and Infusion sites, and I'm lucky -- for me, it works GREAT.) But I do use Udder Cream to help recovery of old Dexcmom and Infusion set sites, for as long as they're at all visible.

Costs 1/20 as much as scar gels, and works far better (in my case). But there is one overwhelming problem -- the smell is AWFUL, and lasts for several hours.

Comment by Isaac on April 25, 2011 at 6:16pm
Thank you for the Uni-Solve information.


I have not had any rash or itching problems so far. My first sensor was November 6th. I usually get two weeks from one sensor.


Thank you for the mineral oil information.

Sorry for the delay everyone, I don’t get to a computer often enough, and I can’t post from my Blackberry.
Comment by Kelly WPA on April 25, 2011 at 5:54am
Thanks Lisa! I knew some people took it so I figured someone would know.
Comment by Lorraine on April 25, 2011 at 5:06am
I see. Thanks Helmut. I'm so glad you found the resolution. We have tried what feels like every combination of barrier thinkable. Excluding alcohol from the routine seems to help too. His skin still gets dry, but he can at least keep the sensor on. It had gotten to the point that within hours/minutes of putting on a sensor he was scratching like mad and I had to take it off. Keeping his skin smooth and healthy seems to be the biggest key and removing the adhesive with Unisolve goes a long way with that, I find.
Comment by lisa c on April 25, 2011 at 4:41am
It takes 6 hours. I did it not realizing the dex would crash . It comes right back after that time.
Comment by Kelly WPA on April 25, 2011 at 4:32am
Tylenol question – about how long does it take for Tylenol to get out of your system? I have been sick & last night, started running a fever so I shut my Dex off & took some Tylenol. I took some more this morning & would like to turn my Dex back on later today but don’t want to try until chances are good the Tylenol is gone.
Comment by Bill on April 24, 2011 at 7:14pm
Many of the commercially available adhesive remover products, including Adhesive Tape Remover Pads from Dynarex are nothing more than mineral oil. Gently rubbing with mineral oil and following with a tissue will get all of the gunk off.
Comment by Helmut on April 24, 2011 at 6:45pm
Lorraine, I had tremendous problems with the OmniPod. Way worse than with the dex. I first stopped using alcohol. This brought a temporary relief. Then I started using Uni-Solve which was another improvement. The final fix was using Skin-Prep. The lessons I learned from dealing with the OmniPod I applied to the dex. My skin problems are 100% gone. None whatsoever. This after being so bad that I thought my only choice was going back to shots.
Comment by something_exotic on April 24, 2011 at 6:07pm
I've only been using the dex since January of this year. I usually get an extra week (sometimes 2) out of my dexcom sensors but it does leave this ridiculous looking ring of lint/adhesive around the site. I spend a few minutes rubbing it with my bare hands before getting it all off. After a shower, the irritation of it all usually goes away.
Comment by Lorraine on April 24, 2011 at 6:04pm
I have been told by DexCom that there has been no changes in their adhesive.
Helmut - what do you do? Just endure it?

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From the Diabetes Hands Foundation blog...

FDA Docket Extended! We Need You.

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An Open Letter from @AskManny, @DiabetesHF to @NYTRosenthal, @NYTimes

Dear Ms. Rosenthal: I am a person living with type 1 diabetes since the age of 30. I am also the President and co-Founder of the Diabetes Hands Foundation, a nonprofit aimed at connecting and mobilizing the diabetes community. Seeing Read on! →

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