Cory Monteith’s mum Ann McGregor, has spoken for the first time about the loss of her son.

Cory lost his battle with alcohol and drug addiction last July, when the Glee star was found dead in a hotel room in Vancouver.

"The loss is horrendous … until three days ago I couldn't look at a picture of Cory. So there's been progress."

Ann reveals that she is still in touch with Lea Michele who was going out with Cory at the time.

"She’s hurting too … you see the sadness. I know her pain."

McGregor also revealed that her son had his first drug scare when he was just 15.

“Cory was 15, he did a code blue. I think that was the turning point. He had a lot of emotional things he was trying to figure out – a lot of it was he really wanted a relationship with his father. I think when a child gets invalidated they keep reaching even harder. They want to find out why."

The mother then offered advice to parents who were going through similar issues.

“I don't think we have power to change the choices they're making. I think with the kind of connection Cory and I had, if we couldn't prevent that situation, I don’t have the answer. What could I say to them? Live every moment. Grab the second."