Had a small first degree tear (no stitches) and used 'Ural' in my drink bottle for the first week, which took any burning/stinging out of weeing.
Sitting/lying down was pretty sore for the first three or four days, I was super slow getting up and down, and walking was a bit uncomfy but the more I walked, the better it got, perhaps I just got used to it?
DTD one week after the birth, used KY, and that was awesome! Glad I talked DH into trying!
After each feed (or almost each one), I either had a shower down below or squatted in the bath and used a squirty sauce bottle filled with warm water to clean everything up - I think keeping it super clean would help heal any tears/stitches.
Plus I used a hair-dryer (warm setting) to dry down there too which was heaps nicer than any towel.
Hope all that helps