Hey, I'm going to help you with every park skiers nightmare... SHINBANG. I guess I'll get right into it. Once again this is for BAD shinbang, like hurts too much to ski bad.
As soon as you get shinbang stop skiing as soon as you can, If you need to ski/walk more un-buckle your boots and push your tongues out and ski/walk very slow and easy.
Once you get home your new best friend is ice. Ice your shins for 20 mins. Then off for 20 mins, Massaging and stretching is good for your 20 min off time. Repeat this for a few hours.
Once your done icing, Stretch your ankles by pushing your toe and ankle down like this (\) like a ballerina, Then pull up as far as you can, So your toes are close to your shin.
Unfortunately, That's all I have and all you can do is Repeat these steps! Thanks for checking my guide out!