Take the Next Step in Chronic Pain Relief

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To accelerate getting your Infrex Plus pain relief unit please call us now during  business hours at 1 – 800-937-3993 or leave us a message.

Elizabeth Johnson, P.T.
Elizabeth Johnson, P.T.

Ask our Physical Therapist

Please use the comment box at the bottom of this page to ask our on staff Physical Therapist and question about your chronic pain. We hate to see anyone suffer from chronic pain.

Elizabeth Johnson is our on staff Physical Therapist

Please revisit this blog often to check for answers and join our community of pain relief enthusiasts.

Learn About How To Stop Chronic Pain With This Video

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Reader Comments

Thanks for the free trial but don’t I need a prescription?

Written By painguru on November 24th, 2009 @ 5:29 pm

Hi Elizabeth,

My name is Rachel and I represent http://www.seriousinjurylaw.co.uk.

I read Pain Relief Machine with interest. Here at SeriousInjuryLaw we cover a range of health topics, and I feel that this gives our two sites common ground.

I am getting in touch because we have recently added two new features to SeriousInjuryLaw which I think will be of interest to your readers.

Firstly, we have added an RSS newsfeed. SeriousInjuryLaw offers readers an industry leading news feed, with daily updates on spinal injury, brain injury and many other health and law related topics.

Secondly, SeriousInjuryLaw is offering free injury guides for people affected by injuries looking for advice on recovery and legal processes following an accident.

I can forward more details on this to you if you feel it would make interesting copy for your site.

I would be very happy to review or recommend your site on our blog if you wish.

If this is something that interests you, please feel free to get in touch with me on this email address. It would be helpful at this stage if you could confirm an email address that I can contact you on directly, so that I can send a press release straight to you, and only send it if it will be of use to you.

Many thanks, and I look forward to hearing from you.

Rachel Charman?www.seriousinjurylaw.co.uk

Written By Rachel Charman on January 21st, 2010 @ 2:35 pm

The Infrex Plus worked great for me when I was suffering from Sciatica from my motorcycle accident.

Written By Optahealth on January 14th, 2011 @ 7:41 pm

Suffering from chronic lumbar pain from stenosis, sponylothesis, impaction. Interested in PENS unit over TENS but hear both work well! Have insurance that covers 100%. Just cannot find?

Written By D. E. Emison on June 9th, 2011 @ 4:30 am

I have back and shoulder pain along with my wife who has shoulder pain come and go right now i have problem with my achilles which not sure how i hurt it in the first place just playing softball once a week it been hurting for two weeks now come home from work ice it for 15 min and heat for 15 min been doing that just can’t run on it smile my question is just how much does this cost would love to have one for myslef smile thanks


Written By Everett on June 19th, 2011 @ 1:52 am

back pain ,knee pain remedy please

Written By athavan on June 22nd, 2011 @ 10:25 am

Dear Sir/Madam

I want to buy a TENS machine with 4 speaker and Electric Operation.

Please if you have any contact or person email or phone no please send to me at your earliest


TT Ismail

Written By TT Ismail on June 22nd, 2011 @ 2:16 pm

Hi D.E.,

My suggestion is always go non invasive before being invasive. Percutaneous should be course only if tens fails would be way I would go if given those two choices. Remember that interferential though is done simply to decrease resistance so an external device can hit targeted nerves without surgical intervention such as one does for PENS, DCS or even DBS although “deep brain” is another issue. Interferential also provides long periods of carryover pain relief sometimes meaning weeks or months.

Written By painguru on June 27th, 2011 @ 5:34 pm

$895. We can bill insurance if have Dr’s prescription but must be a medical doctor.

Written By painguru on June 27th, 2011 @ 5:36 pm

Email is: bobjohnson@medfaxxinc.com and phone number in U.S. is 800-937-3993. thankx.

Written By painguru on June 27th, 2011 @ 5:38 pm

Question? Would this work for my wife’s Trigeminal Neuralgia? Has anyone tried it for this and does it work?

Written By Les Corbiere on July 26th, 2011 @ 3:00 pm

Hi Les,

Answer is yes and protocols date back to 1970’s. Sent you via separate email info.

Written By painguru on July 26th, 2011 @ 4:39 pm

Does this work at all?

Written By Jordyn on September 11th, 2011 @ 12:21 am

Hi, from the UK
Do you offer the free trial to folk in the UK?
I have peripheral nerve pain all down left side of body – worst areas being foot and lower leg. It began with a serious migraine right side of brain.
Obviously, I do not want to buy the product without trying it out first.

Written By peter j foster on October 20th, 2011 @ 11:41 am

Hi Peter,

If I were you would go to a physiotherapist, when in pain, and ask them to give you an “interferential” treatment. Takes about 20 minutes and see if:

1. Do you get pain relief during the treatment?

2. If so how long does the pain relief last after the treatment ( carryover pain relief).

The clinical units in physio depts. use a slightly different wave form than the existing Infrex, but if that provides you relief then the portable should also do so, and by being able to self treat, you can stop the frequency or pain duration by using your own unit. We have several videos on MedFaxx web site on how this stops the unnecessary chronic pain message when one can self treat.


Written By painguru on October 20th, 2011 @ 2:34 pm

Hello Elizabeth,

Can you clear few of my doubts dear?

1)Does TENS therapy depends on the distance between the electrodes?

2)Why you have focused only on Chronic and not acute pain?

3)Why you recommend to start with interferential mode?


Written By Vivek Silwal on January 6th, 2012 @ 5:34 am

have rsd in left elbow after break nerve never shut down almost two years no meds work. do you think this may help and will work comp pay?

Written By sidney on September 28th, 2012 @ 3:56 am

What can I do at home and at work to help with this pain. I can’t walk, or sit to long. I have no insurance to go to the emergency room.

Written By Carolyn Johnson on October 8th, 2012 @ 3:16 pm

Hi Carolyn,

The use of interferential therapy is really only a 20 – 45 minute treatment per day for what is called “carryover pain relief” – residual pain relief after treatment. For most people the early a.m. and late p.m. treatments provide relief for most of the day in chronic pain conditions. However if that is not sufficient then the Infrex has traditional “tens mode” which means you can wear unit during day for additional pain relief.
We can arrange a payment program for you after you’ve had the free trial to see if helps you. On free trial all we require is credit card to make sure we can charge for unit if not returned. Hope this helps.

Written By painguru on October 8th, 2012 @ 3:30 pm

Hi Sidney,

May work but try first is always how to find out. We can check with your work comp. to see if will pay for trial and eventual purchase if you call us, 800-937-3993. Will need phone number, claim number, and doctor’s presecription for trial. Infrex has been successful on other RSD patients.


Written By painguru on October 8th, 2012 @ 3:32 pm

HI Vivek,

Answers to your questions:

1. Yes. Proper electrode placement enhances success of units.

2. Most acute pain is readily handled by anti-inflammatories, ice, rest and therefore does not require such as a temporary condition.

3. Because it works best. Tens only works if constantly using, not so with interferential.

Written By painguru on October 8th, 2012 @ 3:34 pm

The reason we allow a free trial is for the patient to determine if it works for him/her. A general statement is not curative as the issue is the singular patient not a general observation.

Written By painguru on October 8th, 2012 @ 3:36 pm

Thanks! But these therapies only divert mind from pain…..Skype: viveksilwal

Written By Vivek on March 4th, 2013 @ 9:18 am

Hi Vivek,

You are correct if the device is being used in “tens mode”. Tens is built upon the melzack/wall gate control theory of pain which is stimulation of non pain fibers so the pain fibers do not deliver the message of pain to the brain. With interferential therapy there is dramatic alteration of the underlying tissues, where the pain message is originating, and dramatic chemical changes occur which may prevent creation of the pain signals. That is a a more permanent therapy versus the tens “interference” which doesn’t happen when the machine is not being used. You might find the video on “carryover pain relief” a good read if you interested in this type therapy.


Written By painguru on March 4th, 2013 @ 4:07 pm

Does this work for pain due to diabetic peripheral neuropathy in feet, legs and hands

Written By Tommy Oliver on June 6th, 2013 @ 7:17 am

Yes it does.

Written By painguru on June 6th, 2013 @ 2:29 pm
This post was written by painguru on November 24, 2009
Posted Under: chronic pain
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