I have had no milk or yoghurt for over three weeks, but must admit that I've had a bit of cheese this last week with no disastrous side-effects. I have also been taking my multivitamins regularly and trying to eat more vegetables. This has hardly been a scientific experiment and I don't think I can necessarily attribute the clearing to the no-milk diet. But having read about the things that go into milk I don't think it will do me any harm to cut down on dairy. I used to drink at least of glass of milk every day and eat loads of cheese, so will probably be healthier in the long run anyway.
I am a bit suspicious that things could get worse again - I have PCOS so my hormone levels are really unpredictable and I don't have any regular cycle like 'normal' women. This means things can turn a corner pretty quickly, but I'm trying to keep my chin up!