How long does it take for swelling to go completely down after getting mildly hit on the side of my nose?

The healing time after blunt trauma to the nose is variable to each individual. What,s more important is the degree of the blunt trauma. You were hit by a rubber duck. Swelling should be all gone by two weeks max. Some people take up two 6 weeks to resolve.

Dear gustavojp,
Thank you for your question. We recommend you ice the affected area for the first 48 hours as well as avoid blood thinning medications such as ibuprofen to minimize any bruising and swelling. The area should improve in a matter of days to a week or two. If you have a persistent bump for several weeks or new nasal breathing problems, we recommend you seek a consultation with a facial plastic surgeon or plastic surgeon who can perform a thorough examination and then discuss with you any treatment options.