The loanee has been suffering with dizziness and headaches from the after-effects of a concussion he picked up at parent club Lincoln.
He was taken off at half-time in both the Southend and Grimsby games but played 90 minutes against Harrogate after being given the green light to play.
Manager Brian Dutton said: “I don’t want to speak too loosely on it, maybe I have spoken too loosely on it previously.
“Max Melbourne has sought medical advice following the previous game (at Grimsby), I’ve given him a couple of days off and he feels a lot more comfortable out on the pitch now.
“It seems to have remedied that issue in the short-term. In the long-term he’s due to see more professionals to really clear it up. But a couple of days off and a rest has done him the world a good and I think we saw that in the performance (against Harrogate).
“It was a much more positive performance from Max Melbourne than what we’d see in the prior two games.
“I’m in the hands of the medical professionals and they tell me it’s fine for him to play.”