I suffered really badly from shinsplints after the Paris marathon, admittedly I had a tiny bit of pain from them before the race, but they killed me after, I had 3 months of no running then tried to run a mile, I don't know how I made it back home without an ambulance!!
Went to a physio nearby and she said that my calf muscles had 'given up' at some point in the marathon and my brain had 'told' the tiny muscles next to the calves or the shins - to work instead. So when I went out running that mile, these tiny muscles still worked instead of the strong calves. The miracle cure over the course of only 2 WEEKS, was to stand on the edge of a step, on the balls of one foot and do heel raise repetitions until 'failure' ie can't do anymore. This will tell the brain where to send the correct signals for this muscle. Did this for both legs and was able to run 4 miles on tarmac within a month!!
I won't say it will work for anyone else but that it worked for me