Dermatitis Herpetiformis and Pityriasis rosea

[Jacki Espo]

I accidentally ate wheat and a week later developed my usual dermatitis herpetiformis flare up in the usual spot. However this time with a twist - a few days after that I developed a rash called Pityriasis rosea. 
 

I am curious as to any potential linkages 

[Scott Adams]

It sounds like you're going through a tough time with both dermatitis herpetiformis and now Pityriasis rosea. Unfortunately, it’s not uncommon for people with celiac disease to experience additional skin issues after accidental gluten exposure, as your immune system can become more reactive. While dermatitis herpetiformis is a well-known manifestation of celiac disease, Pityriasis rosea is usually unrelated and could be a separate viral-triggered skin condition. However, stress on the body from the flare-up might have made you more susceptible to other skin issues.

If you have DH you will likely also want to avoid iodine, which is common in seafoods and dairy products, as it can exacerbate symptoms in some people. This article may also be helpful as it offers various ways to relieve the itch:

 

[Jacki Espo]

Thank you. I've read that Pityriasis rosea can be triggered by autoimmune disease.  We've ruled out Covid (another trigger of PR).  I can't pinpoint how I could have gotten a virus (or bacterial infection) to trigger it.  I wondered if others had a similar experience.  Thanks again for the reply.  I'm lucky it's not itchy!