Vocal cords

I got sick about a week ago, and I lost my voice. I now have it back good enough to speak, but I can't seem to hit the higher notes when singing. This is bad, because in a week I have to sing at church in a musical in which I have a big solo. Is there...

anything else I can do, other than drinking lots of water and hot water with lemon juice to get my vocal cords working?

Dont try to sing for a couple of days and dont talk so much - your voice just needs som rest and since you just recently lost your lost voice you should try to use at little as possible, and by singing and reaching for those high notes you're only making it worse.

If I have a soar throat I usually drink tea with honey in it, it usually helps.