5 days ago i was hit at the bottom of my nose, i looked in my nose today and on both sides it's caved in. how can i fix this?

YOU should: seek attention ...a "hands on" examination is indicated although what you are describing may simply be reactive SWELLING from the blow.... Apply some heat...see a medical professional! Hope this helps! Dr Z

Probably you can't: It sounds as if your nose may be broken and I don't know of anyone who could fix this themselves, as it would be too painful. Since it is Christmas, if you are not having pain or bleeding, you could use nasal decongestant and sleep sitting up as much as possible, apply heat and hope for healing in proper position. If trouble breathing, need to see an otolaryngologist to repair. Good luck!