Keto Rash Successfully Treated With Topical Lemon Juice

This reader treated her Keto Rash by simply applying lemon juice.

While I’ve never heard of using lemon juice before and I haven’t come across any literature on this, if this works, it’s definitely a cheap and easy solution.

I would like to tell you that after trying all the advice and remedies I could get my hands on (starting from your blog to other sites), including antibiotics, I have in the last month successfully cured my keto rash.

I simply started applying lemon juice (from fresh lemons) twice a day.

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How a Doctor from Germany Treated Keto Rash While Staying In Ketosis By Slightly Increasing Carbs

Earlier this year I received an e-mail from Rainer Haarfeldt MD, a physician in Germany.  He described how he managed to treat keto rash while staying in ketosis simply by increasing his carbohydrate intake by 10 – 20 gm per day.

While this wasn’t possible with me, the fact that it was effective with Dr. Haarfeldt definitely makes this a method worth considering.

Hey Philip,

My name is Rainer, I´m from Germany and I´m a medical doctor for internal medicine.

I´m engaged in endurance sports (mountain running, biking, cross-country-skiing)f or 35 years and work with many athletes (endurance sport).

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Keto Rash Successfully Treated with Clarithromycin – From A Reader in the UK

Every once in a while I’ll get an e-mail from someone detailing their experiences with the Keto Rash and most of the time they’re willing to let me post their stories.

Here’s one I just received from a reader in the UK describing how she successfully treated her keto rash with an antibiotic.


I developed a rash exactly like all the descriptions here (except mine was never itchy) after cutting my carbs down to 20g a day.

It took a few weeks and gradually spread, initially I thought it was a sweat rash (little red dots under the band of my sports bra or the waist of my sport leggings) but it spread across my abdomen, axillary tail areas and the sides of my waist.

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Jasmine just posted her 60 day Keto Rash update at

She is currently experimenting with a zero carb version of the ketogenic diet (talk about ultra low carb!), and just published her latest post, “Zero Carb Update: Day 60.”

Unfortunately the rash hasn’t gone away yet.  At this point it doesn’t look like zero carb is that right answer… at least not 60 days out.

Check out her site to see updated pics of her keto rash and to learn a bit about methylation.… Read More

A Reader’s Keto Rash Experience: Travis Part 1

Travis LeftSide

[Editor’s Note: This is a guest post from a visitor of the site named Travis who’s been dealing with this rash for the past 15 years and just recently found this site.  He volunteered to write a about his experience and submit photos along the way has he himself experiments with it.  We plan on making this a series of posts.  Again, I invite anyone who’s interested to share their experiences too.  I’m more than happy to help put together a guest post if the process seems intimidating.]

Here’s Travis:

On two separate occasions in the early 2000’s I developed this rash when deep in to ketosis via an Atkins diet.… Read More

Follow Jasmine’s Keto Rash experience at

Jasmine, a long time supporter of this site is currently experimenting with a zero carb diet that has predictably brought upon the keto rash, something she’s dealt with before.  She has some pictures of her rash on her most recent post: “Transitioning to Zero Carb: Day 7.”

I encourage you to stop over there to follow her experience with this rash.  Hopefully she’ll be able to figure some things out that she can share with us!

She also has some great articles on a variety of topics which I’ve enjoyed exploring.… Read More

A Reader’s Keto Rash Success Story: Jude

Jude[Editor’s Note: This is a guest post from a visitor of the site who wants to go by Jude.  I think its wonderful for folks who have the keto rash to share their experiences for the benefit of others.  We all know how little information there is out there regarding this, so the more cases we can accumulate the better.  Please, if you think this is something you have, I’d encourage you to share your experiences here.  Many of you have done so already in the comments section, which is fantastic. Read More

Successful Treatment of the Keto-Rash by a Visitor to this Site


Every once in a while people will contact me about a rash that they think might be keto-rash. I do my best to respond to all of them, and sometime I hear back and sometimes I don’t. Well here’s a case where someone with a rash tried treating it by increasing their carb intake and provided wonderful followup.

In early December I received this e-mail from a visitor named Apryl:

“I found this page by Googling “low carb diet rash”… after breaking out into a rash under my breast and rib cage area.

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A Reader’s Experience Treating Keto Rash with Doxycycline

In the comments section of the BJJ Caveman keto rash page a reader named John wrote:

I had no reoccurrence of the rash after taking Doxycycline for 11 days without any change in my diet 9 months ago (see above and be aware of rare but possible severe side effects affecting mood). In order to avoid antibiotic-associated diarrhea I took Saccharomyces boulardii together with the antibiotic.

I now do intermittent fasting daily throughout the work-week without any problems. My longest fast was 36 hours.

Maybe Doxycycline wipes out certain types of gut bacteria that can proliferate extremely well under the conditions of ketosis, but not otherwise and produce a substance that causes the rash.

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