I have a fat and big nose. What can I do?

Dermal fillers in the form of a nonsurgical rhinoplasty have limited applications:1. Straighten a dorsal hump2. Raise a drooping tip3. Add tip/nasal bridge projection4. Fill in contour irregularitiesI recommend consulting with a Board-Certified plastic surgeon who is comfortable with surgical AND nonsurgical rhinoplasty.  He or she will accurately examine your nose, create a simulation based on what your nose could look like after surgery, and formulate a plan tailored to your individual needs and wishes. Good luck!

The rhinoplasty procedure can address making the nose smaller and more narrow. Osteotomies of the nasal bones can narrow the bridge, and a tip rhinoplasty can narrow the nasal tip cartilages, and an alar-plasty is performed to narrow wide nostrils. The dorsal hump can be shaved down as well, all with a closed rhinoplasty approach with all incisions made on the inside of the nose

Based on your description non-surgical fillers may not be the best option for you. To be sure, please submit photos so that a better assessment can be made. 

In order to provide you an answer regarding non surgical versus surgical nose job I would need a photograph.