Frogspawn DISEASED?


My frogspawn coral has been in the tank for about 2 months was looking nice untill today when I was looking at it and I noticed that around the edge of flesh, some was white. Like it had died or something, every branch of its 3 has this and the coral has not opened up as much today. What do you guys + gals think? I'm really in distress about this :( please help