Define the rub: something that causes a difficulty or problem â the rub in a sentence something that causes a difficulty or problemâ¦ See the full definition
Knowing the difference between lice and dandruff can help heal your scalp condition properly. Lice are infectious parasites and dandruff is a self-contained scalp condition. Dandruff comes from the head, and flakes off. Dandruff is due to the excessive shedding of dead skin cells from the scalp, and lice are wingless insects (small bugs) that infest the hair and scalp. The methods of prevention and treatment also vary between lice and dandruff.
A few ways to tell the difference between nits and dandruff flakes: 1.) Dandruff flakes appear throughout the hair, while most louse eggs appear close to the scalp. Most of the time eggs will not be directly on the scalp, but on strands of hair about 1/2 inch down from the scalp.