Wise decision! Dairy is bad, just be sure you think of all the foods that have dairy in them as well. Some things you would be surprised to find it in. So avoid all if possible.
Took me near a year to get clear but i changed ALOT of things along with stopping dairy and eggs. Also strawberries and all gluten and i also use a regime of 777 and tuvarak oil, psorolin products and neem guard. I also use emu oil pills for my nail Psoriasis as my nails were really really bad and it helps bone mass as well, my bone mass improved greatly after starting them. Right now i am mostly clear and i would be afraid to change a thing at this point.
Good luck, keep doing what works. I also noticed that if results come to a halt, just make a few minor changes, like stop using whatever for a day or so and start again, gives it a boost. And if ya could use some GOOD support and GOOD friends you might want to look up the boot club at nutrition4skin, very nice people hang out there! :-)