I think I am having a flare of psoriasis on my scalp. Several years ago I was having issues with what I thought was bad dandruff and my doctor at the time prescribed a liquid which I think was a steroid concoction. I had it in the cabinet for years and would use occasionally on back of head if I thought I had dandruff but now gone. The last couple of weeks I was thinking I had dandruff because weather is very dry here but on closer inspection of my scalp this morning, it is on left side of head above ear, seems to be more than a case of dandruff. The node behind my ear is swollen too. So maybe psoriasis?? Anyone have any suggestions for treatment. Here, in sunny Saskatchewan, Canada, it is -29 Celsius and windy, I don't want to go outside to go to doctor if one of you can advise me. I await your great knowledge.