Hello. Thanks for writing to us at healthcaremagic First of all, I would like to assure you that Pityriasis Alba is not an illness at all. These are light colored patches (lighter than the surrounding skin); they can be somewhat scaly as well, the light color being actually due to post-inflammatory hypopigmentation The patches are common on dry skin. I usually recommend using a good moisturizer, twice daily. You can also use an OTC topical steroid e.g 1% Hydrocortisone twice daily for the patches, over and above the moisturizer. That should make the patches fade away in 2-3 weeks. Regards