Red and flushed face

I don't get too much facial psoriasis. If I do then it's rarely severe and using a bit of dovonex and moisturiser usually does the trick. My body is a different story! Now for the past 3/4 months I've been taking methotraxate for the first time with spectacular results up until now. I don't know whether it's related but last week my face became flush and red on my cheeks and nose making me look very weathered! It's stuck around so many people have noticed it. Has anyone experienced this taking methotrexate or otherwise? It's happened before usually when I've been in a very cold environment for a fair bit of time (3 peaks challenge for example) but usually alleviates after a day or so. This seems to be sticking around and my face feels really tight.