So your scalp is itchy, maybe with sore bumps and/or dandruff. Any or all of these symptoms add up to seborrheic dermatitis. And, as far as I was concerned, nothing seemed to relieve this pesky condition for very long, if at all.
Finally, after a number of office visits, my dermatologist recommended switching out several effective shampoos. "Use one until it stops working," Dr. D. said, "then go to the next and the next and back to the first..." etc. "Some people say this works," he added hopefully.
Dr. D. sent me home with shampoo samples, most of which didn't work. He also gave...