I don't think Head and Shoulders is really appropriate...
Does anyone have any experience of this? Our cat is getting on a bit and has been dandruffy in the past, but it's usually cleared up with a bit of a comb. At the moment it's terrible and we get covered in flakes every time we stroke him. It doesn't seem serious enough for a vet visit (please no, don't need the bills) but I can't leave it as it is.