Bro. I think u have to prepare for the worst. My torch have 6 to 7 heads. Kena brown jelly now left with 3 heads. I also removed the affected portion but still hit. Cos i think other head may be injured and got infection during removal of other head. Also. When doing maintenance or putting the coral into tank, we have to take extra care not to injured yhe fleshy part. ... i do feel like feeding the coral can boost their immune to brown jelly. That in my own experience.