Sore throat and swollen gums?

Viral. Possibly viral infection given the season. Allergy is another consideration. If you have other symptoms, please relay those.
Could be viral. With a sore throat, i suggest you see your primary care physician. If you have ulcerations and/or redness, this could be the sign of a viral infection and that could be affecting your gums as well. If the two could not be tied together, i suggest you see a periodontist to evaluate your gums.