I'm wondering if xeljanz has an unknown side effect of acne, cystic acne or H.S.? This seems to be something that others have stated as well.

Read that cider vinegar can help with breakouts, returns skin to proper PH. I haven't been on that med. Feels like there is always something. I know it's frustrating. My skin improved when I found out about blood types and which foods are better, neutral or negative. I had roscacea. I also got a food sensitivity test. I wonder if milk thistle tea or dandelion root tea would help. Those help with detoxing liver (thistle) and digestion. Dandelion root is kind of bitter so you can add fennel seeds or get a tea with roasted vanilla added. I haven't heard of interactions but everything in moderation, a cup a day. Hang in there.

I've been on Xeljenz for 6 weeks. Was on Actemra prior. This med has been wonderful for my joints. No stiffness or pain anymore!!! But.....the large sore type painful acne I've been experiencing for a week now. Previously never acne. Its driving me insane. I've just put a cortisone ointment on spots overnight. Will call my Dr tomorrow. If I can find an ointment to deal with this I'd rather. This new medicine works wonders for the rheumatoid

I have an update. I was finally diagnosed with what these sores are. Hidradenitis Suppurative (sp). So The derm put me on Humira. Beings Humira is used for RA then, the RA DR, pulled me off of Xeljanz thinking the Humira can kill two birds with 1 stone. After the 2nd shot, All of my sores/acne cleared up and didn't come back. I was so Happy! But...
My RA wasn't being affected by the Humira at all. So the DR increased the shots to every week. Still, my Ra flared up something terrible and I was in so much more pain. My right knee even seized up (like it does when the meds don't work). I asked to go back to Xeljanz because I know it was working to a degree, although not fully.
Within 2 weeks being off of Humira, all my sores/acne (H.S.) came back. And this time it came back with a vengeance! It is far worse than what it did before. I have to grow my beard out to hide it because I am ashamed of what I look like to people, especially at work. To top it all off, I just found out I have bad disc degeneration. SO the derm DR. put me on Accutane. And my sores got worse yet. Now my skin is flaking something fierce & lips chapped. I was told this is normal and the Accutane has to "build" up in my system. I'm to give it a couple of months before we pull the plug.
I can't help and wonder... if my HS went away not so much of because the Humira, as it was because I was off of Xeljanz.
Another interesting fact, Humira works on the immune system, Accutane suppress the creation of sebum in the skin. If Humira worked, is this a direct link to the immune system attacking my skin somehow?
Either way, I'm in a lot of pain between all three. Thanks everyone, for all the hugs! I invite anyone to post anything they know about HS, or cystic acne and what could possible be going on.

Any update on how your cystic acne has behaved? I started taking Xeljanz a month ago and am having the same thing occur. I’ve never had acne previously.
Wondering if I too should cut out milk products like one user said on here. Sounds like it would help.