I just placed an order for Rogaine Foam, and I was thinking of shaving my head so that it won't be as apparent when my hair starts to fall out. Also, it might allow easier access for the foam to reach my scalp. My hair is already very short and I've shaved my head on numerous occasions in the past, so it won't be a dramatic change. Then I'll let it grow back out after a few months. Thoughts? This won't affect the re-growth, will it? Thanks