Stynes was at the MCG on Sunday to watch the Demons rally to smash Fremantle by 63 points, and he said his own recovery was progressing well.
"I'm a lot better than I was three weeks ago," he told melbournefc.com.au.
"The surgeon and pathologist are pretty confident and at this stage, it's just a wait-and-see game. With all of the things that I'm doing, I'm very confident that we can keep [the cancer] at bay."
Stynes spent his time in Thailand fighting his natural instinct to pack as much into the day as possible.
"I don't really know how to relax, because I've never done it before and I've always been on the go," he said.
"I kept true to myself over there, because otherwise I would want to get in the gym or play around with the kids, so it was really hard to discipline myself."
Sunday's win was Melbourne's fourth of a bleak season, and Stynes was impressed with the side's camaraderie.
"When we kicked a goal, they were genuinely happy for each other. A lot of the teams don't often feel that way towards the end of the year – it's like 'Oh well, whatever'. But they see a real bright future and we've got some great characters in this team.
"LJ (Liam Jurrah) did some freakish things and it was good to see Robbo (Russell Robertson) kick a few. Young Shane Valenti has had to work really hard, because he had a limited pre-season, and Tom McNamara playing his second game – there were just lots of good stories there."
Stynes was also delighted with Melbourne's recent Debt Demolition night, which raised $725,000 on top of more than $2 million from last year's campaign.
"It was a great night and it was great so many people were willing to give so much. Now it's just a case of our 30,000 members and supporters to give a little and help us get past [a debt of] $1 million this year," he said.
"By not having a debt, psychologically it's very important for our football club, because it then allows us to build foundations and not carrying baggage.
"So we need to move fast and once we clear that [debt], we get a lot more confidence from the AFL, MCC, the opposition and our players – everyone."
