HI and welcome,

Try explaining that in order to get over her fear that she has to face it, running just makes the fear bigger. It allows the fear to take hold. Fear is just that, fear. It can't kill her. It feels like shit for awhile, but it will get better.

The fact that she can't read forums is probably because it triggered her. Which means it's working.

If everything you do fails, at least you have tried. She needs to want to get better, you can't do it for her, all you can offer is friendship, support, and the tools to get there, she needs to do the work.