3 doctors agreed: Psorasis: Psoriasis, seborrheic dermatitis, and hair dye sensitivity can all cause an itchy scalp. If this occurs few days after dying your hair, allergy test to the dye to determine if you can use it. Antidandruff shampoos contain ketoconazole, selenium sulfide, tar, or salicylic acid. ...Read more.
Heroic Medicine. History of medicine A popular term used to describe the draconian medical practices of the 18th-19th centuries that included bleeding, blistering, purging, and the use of mercury-and arsenic-based medicines, which are thought to have hastened the demise of George Washington and countless others.
2. a person who, in the opinion of others, has heroic qualities or has performed a heroic act and is regarded as a model or ideal: He was a local hero when he saved the drowning child.