A few simple exercises will warm the neck muscles to give greater cushion and protection during soccer. Other logical steps can be taken to decrease the chances of head injuries in soccer.
VMO is the first muscle to leave the room after an injury and the last one to come back. See article and video on how to have a strong VMO.
There are biomechanical reasons why there is pain. There are ways to take the stress off these ailments thus relieving most or all the pain.