Cotter played down the effect of Finn Russell's freaky missed conversion after Swinson's try put Scotland 16-13 ahead, when the fly-half appeared rushed into taking it after the late arrival of a kicking tee.
Scotland coach Vern Cotter said after the game that all three would be monitored over the next two weeks in an effort to nurse them back from their respective injuries.
Action from Week two of the Six Nation Championship continues later today as Scotland and France who are now 4 and 5 in the table will go head to head as they hope to catch leaders England who won their second match yesterday against Wales.
Tommy Seymour believes that Scotland's greatest asset at the Stade de France on Sunday will be their defensive solidity rather than the razor-sharp cutting edge the back line displayed against Ireland in attack.
"The breakdown was crucial because we gave away seven or eight penalties".
"(It's difficult) when you lose your captain and playmaker", Cotter said.
"We understand how we can win games from being behind". Our errors cost us throughout the whole game. "That will be something we will have a look at".
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I think even if you win everything you still want to improve the squad - that's the nature of the dynamic industry that we're in. The 28-year-old has played a big role for Jose Mourinho's side this season, scoring and creating goals.
"But in those previous games, they probably were still fighting against the way management wanted them to play, but now that they've been given this license and they're confident in what they do, we need to be really disciplined". We lost too many balls and showed our weaknesses in the 22.
"Our errors cost us throughout the game". After allowing Ireland to come back at us, we managed to get field positions and eventually see out the win, so it's pleasing to know we can perform in these situations.
"Not take a try in the last ten minutes, we showed some real character".
Hogg is set to become the 40th Scotland player to reach a half century of caps and, at 24 years and 233 days at kick off, will break the record now held by teammate Richie Gray, who made his 50th appearance at 26 during the 2015 World Cup.
"But we've also got to be careful when doing it, because if you get it wrong or they sniff an opportunity where you're a little disconnected, they're one of the best at taking advantage".
The Scots found themselves under pressure at the scrum early during Saturday's Murrayfield clash with Ireland and then again when Joe Schmidt's side came roaring back against them in the second-half. They got six points clear and it was going to be tough from there. Conversions must be completed within 90 seconds of a try being scored. We weren't looking after it.