Principle of preparation of medical and cosmetic products Cosmetic preparation consists of:  Active ingredient Base(Vehicle) Additional/auxilery substances Additional substances  Fragrances Coloured dyes preservatives Active ingredient:Definition:  Antibiotic Antifungal Antiaging substances:retinoic acid,AHA Bleaching agent Base/vehicle  Definition Effect Three elemental bases:  Fatty bases  Water,aqueous solutions  PowdersFatty bases: Main uses Sources:  Animal…

 Photodynamic therapy (PDT) aims to destroy the desired target selectively, thereby minimizing damage to normal tissue.  The photodynamic reaction consists of the excitation of photosensitizers (usually porphyrins) by visible light in the presence of oxygen, resulting in the generation of reactive oxygen species, particularly singlet oxygen.  These reactive oxygen species…

Propranolol For Infantile Hemangiomas Infantile hemangiomas (IHs) are benign tumors of endothelial cells that show a rapid proliferating phase usually followed by variable degrees of spontaneous regression. Because of this unique behavior, most His can be left untreated, but His located in areas of particular concern, such as periorbital, oropharyngeal, preauricular,…

Differential Diagnosis & Approach to Vesiculo-Bullous diseases in Children  Establishing the correct diagnosis in newborns presenting with blisters and erosions is not always a straightforward process. Many different disease entities including acquired (i.e., infectious, immunobullous, traumatic) and inherited disorders have to be taken into consideration. Similarities in clinical appearance, colonization and/or super…

Introduction  As a pediatrician one of the most common presenting complaints is that of an infant with a rash and with the large number of possible diagnoses (on the order of more than 30!) It is essential to be able to recognize the characteristic appearance of common lesions. Furthermore, it is imperative…