The trainer was critical of his team's errors in Saturday's comeback draw against the Partenopei in Naples, but remains positive for the rest of the campaign
Errors from Christian Abbiati saw the Rossoneri go in at half-time with a two-goal deficit, but the visitors were bailed out by a double salvo from Stephan El Shaarawy after the break.
"I think there were a few individual mistakes which shouldn't happen, but sometimes do," said the former Cagliari coach in a post-match press conference.
"The back line had a good game. We gave the second goal away. The ball went through Acerbi’s legs and then Abbiati’s as well. The first goal was a mistake by Christian and he admitted it.
"The important thing is not to make mistakes as a team, after that individual mistakes are acceptable."
Allegri's team sit in 10th place in the Serie A table after an underwhelming start to the campaign, but the coach believes that there are encouraging signs despite Milan's poor form of late.
"We only have 15 points and so we haven’t achieved anything but if we continue with these performances we can grow.
"The team gave a very good performance here this evening, but we’ve lost four games at home and we’ve paid a high price," he added.