I would recommend doing nothing but giving it time. This may not be applicable to you though, sorry hun.
I suppose it depends on circumstances. Shortly after I had my first child I put in a weave and its was sooo tight. I took it out and my edges were bald, as smooth as a baby's bum. At the time I had no hair no knowledge but I swore never to wear extensions. I came to the board very shortly after and a few years later, say about 3-4yrs in total and they filled in and lengthened very nicely from doing absolutely nothing.
Baby no 2 has come and the edges have thinned from postpartum shedding. I have put 2 and 2 together and realised my first experience must have been a combination of tight weave and post partum shedding. My edges are extremely tender at the moment due to hormoes I expect. I now know I shed like crazy and am still going through it, 5 months post partum :-(. Thank fully this time it is only thinning and NOT baldness and I am hoping that just a little time will tell again. I just moisturise my hair with extra virgin coconut oil/evoo and rose water
Sorry for long post, but yeh, time worked for me and no style in particular. I am a bunner. I try to make sure my bun is not too tight though.