Had an itchy scalp (but no dandruff) for a while and saw Head and Shoulders 'itchy scalp' shampoo on offer so decided to try it. I now appear to have dandruff (as well as the itchy scalp). I've never had dandruff in my life before and now, after using an anti-dandruff shampoo...here we are.
Is it my fault for using it as I didn't have a flaky head to start with??