the short answer is this: yes you should see a doctor. you could have a cyst a lipoma or something else. your best bet is to have this examined by an appropriate health care provider such as a dermatologist though you can simply go see your primary care provider if necessary. unfortunately we can't diagnose a skin lesion like this via the internet. and if it's an infected cyst or something you'll need to have it drained because it won't clear up on its own. best to you!
what kind of skin condition/infection is this? . yesterday an apparent skin infection on my check had swollen half of my face and made it extremely sensitive and sore. i seemed to have brought it down with ibuprofen and ice but the size of the actual bump has not diminished and still hurts. the bump itself looks like a raised inflamed elliptical area slightly over one inch long. the area feels mostly hard underneath while the skin above it feels very dry. what would cause this and should i see a doctor?