I Have had a few bad sprains in my 60 years. Currently suffering with a sore foot/ankle due to "torquing" when completing my golf swing. I golf from the right side and my left foot dislikes the experience. Is there anything I could do to lessen the soreness or eliminate it? I do ice it if required.
It sounds like you may have a chronic ankle 'injury' which makes you quite susceptible to pain with extreme positions, such as ankle 'inversion' in the golf finish. (Right handed golfers)
The golf swing is a coordinated sequence which relies on not only mobility at the ankle, but also at the hip joint. This would also require coordinated stability in your knee, and lower back and pelvis.
Icing will help to nurse the acute symptoms. Furthermore, having a golf-specific assessment which includes a movement screen analysis may help to identify potential limiting physical factors that may be contributing to your ankle pain on the follow through (finish).