Cradle cap cures?

David has a bad case of this flaky dandruff. That's how it started out but now it is forming little red ridges and crusts. I don't know if I've made it worse by softening with oil and then scraping off with a fine comb? To me it looks less like cradle cap and more like psorriasis, which I suffer from. I've decided to leave it for a while and see if it improves on it's own. Baby clinic staff told me to use Betadine Shampoo or some mild cortisone application. I could not get any cortisone as the pharmacist said I need a script nor could I find the special shampoo at Clicks... but would like to try it. That brings me to the question of how often should I be washing his hair?

My other baby - the furry one!

Texas is a Maine Coon - the largest domestic cat breed. Keith and I couldn't agree on a dog breed so we just got the biggest cat you could get. And she lives up to her label of 'bird dog'. She waits at the gate for us and is very much a 'lap' cat. No ice queen this one - she is in my face ALL the time - except when she's hunting anything that moves in our small garden or curled up somewhere cozy.