Just wondering if someone can refresh me on salt baths.. when are you allowed to have them if you have stitches and how long are you allowed to soak?

I had 2nd degree tearing with DD2 10 days ago and am still in quite a bit of pain.. however i think most of my pain is my hemorrhoids.. i think i actually tore them too.. *OUCHY!* So just wondering if a salt bath may help a bit..

TIA