Acne is when a pore of the skin gets filled with something, and the body swells up around it.
A whitehead is when that "something" is white pus, so that the acne pimple looks like a bubble with a white central core.
Whiteheads are a very normal type of acne.
The should not be "popped" or touched in any way, because the act of opening up the bubble could cause infection and make things far worse - even leaving a scar.
Follow the other suggestions on this site in order to remove the whiteheads and to prevent them from returning.
The Vitamin for Acne
The Drug for Acne
The cleaning solutions for curing your acne
The Cyst Pimples
The Blackhead Acne and Pimples
Drugs causing Acne
Fabric, Clothing and Acne
Oily Food, Greasy Food and Acne
The Dirty Skin and Acne
The Pollution of Acne