I know a little about twisted swollen ankles, and I believe the current advice is to ice it (as soon as possible), don't do the heat pads, and rest it.
And take an anti-inflammatory like ibuprofen.
A stitch in time saves nine; that's definitely true with injury and sickness.
Also, because you've possibly stretched a tendon - you're at further risk from twisting the ankle again in the next six months or so. The reason is, that when your tendons stretch to a point, a signal gets sent to your brain to correct your position. But when they've been 'over stretched', you can twist your ankle, and the same message is delayed getting sent to your brain, so your body doesn't rectify your position; resulting in another twisted ankle.
Wor Lass is a mong and went through a phase of twisted ankles because of her fell running activities; and the above is what her physio told her.
Have an early break for Christmas!