Greasy flakes on the scalp and face, particularly around the nose and beard, are often misidentified as dry skin. Dermatologist Dr. Abigail Waldman explains that these flakes are actually a sign of seborrheic dermatitis, a chronic condition linked to the yeast Malassezia. In a recent social media video, she outlines common mistakes people make when treating this condition. One major error is using the wrong type of shampoo; regular moisturizing shampoos do not effectively address the issue. Instead, Dr. Waldman recommends anti-dandruff shampoos containing ingredients like zinc pyrithione or ketoconazole. Another mistake is neglecting facial treatment; the same anti-dandruff shampoo can be applied to the face. Additionally, proper application is essential—shampoo should be massaged into the scalp and left for about five minutes to allow the active ingredients to work. If these over-the-counter solutions do not improve the condition, it is advisable to consult a dermatologist for prescription treatments. This advice serves as a guide for those struggling with greasy flakes and aims to promote better skin health.