Shampooing twice, tar shampoo, rinsing with lemon juice and using a mild shampoo, such as baby shampoo, are home remedies for severe dandruff, according to HowStuffWorks. Other remedies include showering after physical activity and rotating shampoos to avoid buildup.
Shampooing the hair twice works for controlling dandruff as the first wash gets rid of the build up then the second wash does what shampoo is supposed to do, explains HowStuffWorks. The second lathering should stay on the hair and scalp for around five minutes to work effectively. Another option to treat severe dandruff is to use tar shampoo. This has been a remedy for centuries but may irritate the skin and cause light hair to turn darker. Rinsing with lemon juice following a wash with tar shampoo can help eliminate the scent that tar shampoo may leave behind.
Using a mild shampoo may also help to control dandruff — especially if a person has sensitive skin, claims HowStuffWorks. It is also important to shower and wash the hair following exercise as sweat can irritate the scalp and cause flaking skin. Since a shampoo can cause buildup on the hair, it may also be worth it for people with severe dandruff to rotate dandruff shampoo. It is best to use one formulation for a month and then switch to another the next month.