I think it's OK that you started the MC with a road rash. My cat scratched me once while I was fasting and that scratch healed faster than ever!! I think under the circumstances, the homeopathic stuff you are using is OK. Just be aware that they may not "act" the same as they do when you are taking food - they may be more or less potent. Just keep that in mind. Also, I just read that honey has antibiotic properties - so you might think about spreading that on your wound and covering it over.
Microwaves are very bad (in my opinion). It can change the molecular structure of the things you are heating...there are articles about this. Of course western medicine/science says that it is not a problem. But while you're trying to cleanse your system, why risk it?
When I make my lemonade for work, I mix the syrup and the lemon juice to make a concentrate. Then I'll take 2 ounces and mix it with 8 ounces of water when I want to drink it. If I'm cold I'll use hot water from the water cooler, if I'm not then I'll use room temperature water. Then I don't have to worry about the microwave.
Tiffany