Medicated shampoos will help, including zine pyrithione or selenium sulphide, and even stronger shampoos containing tar or salicylic acid.

• 药物洗发精会有些帮助，如含有锌的硫化铁矿物质或含有硒的硫化物，甚至含有焦油和水杨酸的强力洗发精。