Most effective: Large, flat areas significantly arms and legs. Least effective: Curved areas which include the underarms, and cause significant trauma for the face and also other thin skinned areas. Tip #1. Use the blow dryer properly. Blow drying is that always be done for doing this. https://creative-flamingo-lkzpwm.mystrikingly.com/blog/hairdressing-supplies-1-of-three-requirements-when-putting-up-a-salon