I've been on 10mg/week MTX for about five months now. Similarly to others, I noticed a change in my P after about six weeks. The P on my face and neck disappeared really quickly, but the rest still hasn't completely cleared yet, and I suspect that it's coming back on my neck now. (I'm taking the MTX for morphea too, which has only just started to soften.)
I suffered horribly with nausea for about three months, but that's settled now. I'm still incredibly tired every day though. My hair is falling out, but not yet badly enough to notice (and I'm used to that anyway - I have trichotillomania), but it's also almost stopped growing. It's only grown about an inch since I started MTX, which is weird. I don't know if I'm just different, but I haven't heard anyone else mention that as a side effect.
By the way, my derm told me that chemists aren't supposed to use the 10mg tablets, and that I was to ask for the 2.5mg tabs and not accept the 10mg ones.
Mimz