My son is getting his first CGM & it's on the way. First, I read on a thread (that I can't seem to find) that we need special tape to help hold/keep the sensor down. And I also read that a numbing cream is also a good idea before inserting the sensor. What brand(s) do you think work the best? Thanks! Any other advice or tips are much appreciated. :)

Tags: Cgm, G4, cgms, dexcom

Views: 4099

Reply to This

Replies to This Discussion

I have never used any special tape although I try not to get the sensor tape wet that often. I cover it when I shower and I am not a swimmer. I usually get over 2 weeks out of it. I place the sensor on my abdomen and try to find an area with the most subcutaneous fat, but also not too close to my ribs because when I sit it can hit them and it seems to affect accuracy. Kids are probably more lean in the middle. Putting in the sensor doesn't seem to bother me, but a few times I've had trouble taking off the plastic piece and have had to wrench around the sensor a bit which made it sore. I've had some bleeding too, but this didn't affect the accuracy or make it hurt more. I've always wondered now long the needle actually is, but you can't really tell from the inserter, so don't go there. The directions are pretty clear. Just familiarize yourself with them, keep a steady hand, and do it quickly. You'll be just fine. Also the accuracy is off for the first 24-48 hours so you'll have to test to make sure it is getting on track. You can add extra BG readings in if it is over 20% off. Remember it is 10 minutes behind the finger stick reading.
Good luck. It is really helpful, but not perfect yet.

What do you use to cover it when you shower? Also, if it bleeds during insertion do you stop & move to another place or just keep going? Or will it bleed after you insert it?? I think we have a lot to learn. TY for your information. :)

It doesn't usually bleed at all. I must have hit a capillary and I just kept going. This has only happened to me twice and I didn't even notice it bled until I was done. Do not let that freak you out. I knew you were going to ask me about what I cover it with. ;-) You know those rollers you use to get dog hair off you? I use a few sheets of them. I fold one in quarters so the sensor is protected from the sticky tape part and put a few over it. It's cheap and has worked for me, but I take quick showers and this wouldn't work for baths or swimming. I'm sure there's another type of product out there. This was what I had on hand one day. I have two golden retrievers so these are all over my house. There's a CGM group on here that has tons of info. Join it too and get lots of input on people's experiences. You will get comfortable quickly.

Yes, we have those rollers around the house - that is FUNNY! But if it works, it works. TY :)

Opsite Flexfix is awesome tape for sensors, infusion sites and anything else. I've gone for long runs in the summer and come home and used a lancet to drain sweat out of the bubble around the sensor (I have the Medtronic one, I dunno if it's rated to be waterproof but it survived the warranty period...) while the tape held it down. It's strong stuff!

I think I'm going to get some Flexfix to have around just in case. We'll see how it goes without it at first. TY

+1. The stuff is amazing. (Dexcom user)

Even if you end up not needing it, I recommend having Opsite on hand incase. Usually, I get 2-3 days with a Dex sensor before the edges start pulling away, and I put the Opsite on then. I think the numbing cream is a varying thing. I've read some kiddos using it, others not. You might try putting cold ice over the insertion area for a few minutes to start. I don't think I've read as many of the young ones needing numbing cream for the Dex in general.

Good luck with your sons new G4!

With the Dexcom, it is small and light enough you do not need to tape it down after inserting. It is almost painless with insertion. I am very active, rough on my sensor and pump infusion site. I have found that if I will tape a piece of gauze over the site(s) and it seems to help me not pull (bump) them out. I will use skin tac after I insert - not before as it can affect the sensor needle. I will use the skin tac to soak the sensor tape on the outside afterwards, it seems to help as I get between 12 and 14 days usually without the tape peeling. Bleeding is usually none with Dexcom. If so, do not remove the sensor - cannot reinsert so its trash. If there is bleeding, it usually resolves itself and is fine. I will ice the area before I insert, because I think it does help to decrease the chance of bleeding and also it prevents the little stick from the insertion. Ice cube, prep site as usual (alcohol wipe), and let dry totally before insertion! Mastisol is another really sticky stuff I will use a q-tip to "paint" the outside of the tape if it begins to peel. Showers I never cover it with anything - just don't scrub to hard around the site as I have caught one with the washcloth and yanked it out! Mine is well past the warrenty and still going strong. I haven't done much swimming with it, but then I would put a piece of Opsite Flexfix over it - more so to prevent a sensor from falling out and me losing it than to protect it from the water. The flexfix tape sticks solid to the sensor, so try to put something inbetween it and the tape to make tape removal afterwards easier and you don't pull the sensor out. Good luck! I love my Dex - it's not perfect but boy does it make it so much easier to keep my sugars in control!

Thanks! I am getting such great responses from everyone. We may just skip the numbing cream & go with ice then. I will be buying the Opsite Flexfix as we live in South Florida and do go to the beach on occasion (wouldn't want it to come off there!).

I'm also a fan of Opsite Flexfix, but I generally don't use until the 2nd week that I'm on the sensor. At that time, the edges of the tape holding down the sensor start to come up. Flexfix holds the sensor down for an additional week.

Skin Tac Wipe by Torbort group is a great product. I contacted the manufacturer and they instructed me how to use it with Dexcom sensors. Instead of applying it to the skin, where it could interfere with the sensor, they suggested that I apply it to the sticky side of the sensor tape, once the paper backing was removed. Then, I would wait about 30 seconds before applying the sensor to my skin. The portion of the sensor that penetrates the skin never comes in contact with the Skin Tac.

I've also found, that placing the sensor on my shoulder, where the skin is smooth, stops the edges from coming up. There are several videos online on how people do this. I don't have the dexterity to do it myself, so my wife helps. The arm also happens to be less painful.

Good luck,


I'm pretty active and I sweat a lot. You sho

Great idea in applying Skin Tac to the adhesive side of the Dexcom sensor. That seems to be a much better method than applying Skin Tac to the skin while leaving a small donut patch clean for the sensor insertion. I will try your method at my next site change. It looks like a keeper!

A shoulder seems kind of bony for any sensor placement. Where exactly do you mean?




From the Diabetes Hands Foundation blog...

DHF Joins Diabetes Advocacy Alliance

Diabetes Hands Foundation is incredibly honored to join the Diabetes Advocacy Alliance, an organization with the drive and potential to affect a powerful, positive impact on diabetes and healthcare policy. Diabetes Advocacy Alliance is a 20-member coalition of leading professional Read on! →

Helmsley Charitable Trust Renews Support for DHF

HELMSLEY CHARITABLE TRUST GRANTS SUPPORT TO DIABETES HANDS FOUNDATION FOR FOURTH YEAR  Funding in 2015 to support major transitions in programs and leadership at Diabetes Hands Foundation BERKELEY, CA: February 18, 2015 – The Leona M. and Harry B. Helmsley Read on! →

Diabetes Hands Foundation Team


Melissa Lee
(Interim Executive Director, Editor, has type 1)

Manny Hernandez
(Co-Founder, has LADA)

Emily Coles (Head of Communities, has type 1)

Mila Ferrer
(EsTuDiabetes Community Manager, mother of a child with type 1)

Mike Lawson
(Head of Experience, has type 1)

Corinna Cornejo
(Director of Operations and Development, has type 2)

Desiree Johnson  (Administrative and Programs Assistant, has type 1)


Lead Administrator

Brian (bsc) (has type 2)


Lorraine (mother of type 1)
Marie B (has type 1)

DanP (has Type 1)

Gary (has type 2)

David (has type 2)


LIKE us on Facebook

Spread the word


This website is certified by Health On the Net Foundation. Click to verify. This site complies with the HONcode standard for trustworthy health information: verify here.

© 2015   A community of people touched by diabetes, run by the Diabetes Hands Foundation.

Badges  |  Contact Us  |  Terms of Service