Well here's an idea. Don't use red. In the medical context it suggests blood. Most people don't want to think about blood.

martha85 - the reception you've had here is a reaction to an assumption you want something for nothing. I'm not refering to money so much but wanting of others without contributing something yourself. If you have ideas for your logo why not share them and get a real discussion going. Its not too late. The same people who brush off 'do it for me' type requests are very willing to help someone who show they are sincere in trying to help themselves first.

Regards, Ross