Pityriasis alba is a harmless and common childhood skin condition of patches of lighter skin color.
The cause of this skin condition is not known. It may have to do with dry skin or chemicals that come into contact with the skin.
The lighter patches of skin are more common in the summer, but they can happen at any time of year.
The patches of lighter skin are dry and scaly. They are most often on the face and sometimes on the neck, upper part of the chest, or arms.
Your healthcare provider will ask about your child’s medical history and activities and examine your child. Your provider may look at your child’s skin under a microscope to see if another problem, like ringworm (skin fungus), may be causing the patches of lighter skin.
After several weeks your child’s skin color will gradually go back to normal without treatment. Lotions and moisturizers may help. Nonprescription hydrocortisone cream may also help the patches go away more quickly. Don’t use hydrocortisone cream on the face for long periods of time (months) without first talking with your healthcare provider.
Once the skin is back to its normal color, use skin lotions and moisturizers to help lower the chance that the patches will return.
Ask your healthcare provider:
Make sure you know when you should bring your child back for a checkup.