According to WebMD, a swollen nose due to injury can be treated by immediately applying ice or a cold pack to the affected area. Ice helps to minimize swelling, inflammation and pain. WebMD recommends applying ice at least three times per day for 10- to-20 minute intervals. Sleeping in a position in which the head remains elevated also helps to reduce swelling.
The Mayo Clinic explains that it is important to act quickly in the event of a broken or injured nose in order to prevent complications and minimize swelling. In addition to applying ice and keeping the head elevated, the Mayo Clinic states that over-the-counter pain relievers can help to minimize pain and should be taken as needed. Medical treatments for a swollen nose depend on whether the nose is broken. Severe breaks or breaks that go untreated for 14 days or longer often require surgery, while less severe breaks are often treated by manually realigning the bones and cartilage.
If the nose is swollen due to sinusitis or the common cold, MedlinePlus explains that swelling can be minimized by applying warm compresses to the face. Inhaling steam up to four times a day can also help to unblock the sinuses and reduce swelling. Antihistamine and decongestant medications work well to shrink the nasal passages, reduce nasal swelling and dry up mucus.