can be itchy, although this also raises the possibility that you have something else going on such as eczema (a dryness of the skin) or some sort of contact or allergic reaction (usually to a cosmetic product) or seborrheic dermatitis (red, scaly skin usually in the corners of the nose, creases of the face, and hairline) rather than acne. Therefore, you should talk to your primary care doctor
or your dermatologist
to help you sort out exactly what is going on and what the treatment should be.
Assuming that this is in fact acne, then the mainstay of treating acne is facial hygiene with a good antibacterial facial soap. This keeps the bacteria on the skin down and it also helps to remove the skin debris that clogs the pores and contributes to acne. In addition to this most people should use a comedonolytic, which is a type of chemical that strips off the dead skin and other debris. The most common comedonolytics are salicylic acid and benzoyl peroxide; you can find these in multiple over the counter acne products if you read the labels.
If these approaches to acne do not work, then there are prescription medications available as well.