Heidi Klum is there for Mel B ''whatever she needs''.

The 'America's Got Talent' star insists she will always be there for her co-judge as it is revealed that Mel is seeking treatment for her post-traumatic stress disorder.

She told People magazine: ''I am her friend, I have been for many years. If she needs my help I've always offered it to her and she can come and chat with me. You know, you need to have your girlfriends when you're going through hard times. I'm here to help her with whatever she needs.''

Mel previously revealed she is seeking treatment after her ''turmoil and very intense'' relationship and insists she isn't a sex addict or an alcoholic.

She said: ''Well, it kind of got a little bit skewed with. Let's put it that way. Now, I've been in therapy since my father got diagnosed with cancer nine years ago ... My therapy changed a little bit because I was in a very intense relationship, which you can all read about in my book, which is out online now. Alright. So, I do address a lot of those issues. But you know, no, I'm not an alcoholic. No, I'm not a sex addict. You know, I was with the same person for 10 years and that was quite a turmoil, very intense. That's all I can say about it. I'd like to say a lot more, but let's just keep it PC. But ya, I address a lot of those issues and I did kind of have to ease my pain. I do suffer a lot from PTSD.''