I've used Selsun Blue several times and is much cheaper than a doctor visit, however if you have insurance, mine as well do it, the pills work too, as well as the lotion, but if your broke, Selsun blue with at least 1% Selenium in it! Do be consistent, and do wash your sheets! I kept mine on for about 12 hours last time I did it, and they were eradicated, but my back burned pretty bad for a few days. I wouldn't keep it on that long if I was you! Read the directions or the article above!