The acute nature of what you are describing, in conjunction with your photo, is concerning for infection. I would strongly recommend urgent evaluation by your surgeon to rule out this possibility.
Sometimes a small amount of filler can be used to modify the contour of the nose and redirect light and shadow on the face so that it looks smaller and thinner, even though you've added volume. It is not possible to tell from the photo if that is the case in your situation, but see an injection and cosmetic surgeon who treats noses and he/she can guide you. Sometimes skin tightening treatments such as Thermi RF smooth can be used on the tip of the nose if it is truly swelling, rather than just a large cartilage tip.
Thank you for your question. While injectable fillers may be used to contour noses and add volume, they do not help in reducing fullness. Noninvasive skin tightening and other noninvasive techniques will not reduce nasal fullness. I would recommend seeing a surgeon who is highly experienced in nasal surgery to obtain a recommendation for treatment.