Judging from your description, your condition is caused by mite infection, which leads to local redness and swelling of the nose and pustules. In this case, you need anti-inflammatory drugs to kill this mite, and you can cure this redness and swelling of your nose. I suggest taking levofloxacin and metronidazole orally, washing your face with sulfur soap externally, and then applying metronidazole cream, which will have a good effect.