Are Crohn’s rashes linked to disease or meds?

Question

Hello doctor,

I am 34 years old and have Crohn’s disease. I have had recurrent skin rashes and eczema areas even while not suffering bowel flare-ups. I have always thought of Crohn’s as a digestive disease, so these skin problems have been a little perplexing for me.

Even though my gastroenterologist had mentioned "extra-intestinal manifestations," I was still confused.

Is the gastrointestinal inflammation that is characteristic of Crohn's disease the only cause of skin problems, such as rashes or symptoms similar to eczema?
Are these types of skin problems more likely to be attributable to the disease activity itself, or are they perhaps side effects of medications?
Do you advocate a dermatological evaluation as part of Crohn’s management when new rashes appear?

Please help.

Thank you for your guidance.

Answer 1

Hi,

Welcome to icliniq.com

I read your query and understand your concern.

Crohn’s disease can sometimes affect more than just the digestive system and may also lead to various skin-related problems. Many patients experience rashes, itchy or dry patches, eczema-like lesions, mouth ulcers, redness or tender bumps on the legs, or even psoriasis-like skin changes. These are known as extra-intestinal manifestations of Crohn’s disease.

Skin symptoms can flare up during bowel flares, but they can also be separate when GI (gastrointestinal) symptoms are well controlled. Some drugs used to treat Crohn’s disease, such as biologics or immunosuppressive therapy, may also trigger eczema-like rashes or raise the risk of skin infections. So you should consider both the ailment itself and the medicine's potential side effects.

If the rash recurs, spreads, or does not respond to usual creams or treatment, a dermatologist should be consulted. A thorough skin evaluation can help determine whether the rash is associated with Crohn's disease, a medication reaction, a fungal infection, or another unrelated skin problem. Sometimes, a skin biopsy may be recommended to assist with a more accurate diagnosis.

I hope this answers your questions.

Please feel free to follow up whenever needed.

Thank you.