high risk of developing MS

Hi new on here, my friends partner has been told (by GP) that she is very high risk for developing MS (based on lab tests, med history (mum RIP with MS).
Both are trying to absorb the news. Any tips on how I can support and tips on common well-meaning but inappropriate comments to avoid.

To avoid well-meaning but inappropriate comments, read the booklets (or pdf’s thereof) published by MS Society and MS Trust. Among the range of subjects are helping friends & family deal with the news that someone has been diagnosed.

Beyond that, there are all sorts of technical papers, however there is a world of difference between being at very high risk and actually having a diagnosis. MS is incurable and currently, it isn’t something you can vaccinate against either though research is beginning towards that.