Botulinum Toxin: Pearls and Pitfalls

In the document from March 2005, Richard K. Scher, MD, emphasized that not all nail abnormalities are due to fungal infections, highlighting the importance of differential diagnosis for various nail disorders, including benign and malignant tumors. Pat Engasser, MD, discussed the need to be aware of new allergens in the 21st century, the relevance of the American Contact Dermatitis Society's Allergen of the Year, and the use of the Contact Allergen Replacement Database (CARD) to help patients avoid allergens in cosmetics. The document also mentioned the decrease in certain allergens due to regulatory changes and the importance of dose per unit area in contact allergy. Anne Lucky, MD, reviewed the metabolic syndrome (PCOS), noting that dermatologists should be aware of it when treating female patients with acne, hirsutism, or female pattern hair loss, as it has serious health consequences related to insulin resistance. Jean Carruthers, MD, provided tips on using botulinum toxin in aesthetic procedures, such as preventing bumps in blepharoplasty incisions and using fillers for midface and brow lifts in conjunction with BOTOX.