What to do if i have a bulbous nose and wide nostrils can i use juvederm instead of radiesse (dermal fillers)?

Yes: I don't know what you plan on injecting but you can use juvederm anywhere you would use Radiesse (dermal fillers)

Rhinoplasty: Fillers in your situation my exaggerate your nose. You achieve a good result with Rhinoplasty and Alar Repositioning Technique. Consult a surgeon who is experienced in your type of noses .

Liquid rhinoplasty: Injections in your nose cannot correct a bulbous tip and wide nostrils like surgery can. Have your nose evaluated by a board certified facial plastic surgeon.