You don't have to, but since they are living in there own filth then you should.
If you are allergic then you should do this: You wash your hands with regular soap and regular water from the sink. Then, you wash your hands like you usually would.
They do not need washing; they can clean themselves.
Guinea pigs tend not to take showers.....
To wash a guinea pig you have to have a sink, soft towel, guinea pig shampoo, perfect temperature of the water and a hair dryer ( only if its cold outside ). For more information: Go to: http://www.wikihow.com/Wash-Your-Guinea-Pigs
once every 3 months
If you believe in your guinea pig, he will know the way to the light of your trust in the gathering land. Yes.
If you get bitten by a guinea pig, all you need to do is tap your guinea pig gently on the nose which means "don't do that again" and then go and wash your hands. Don't get all stressed about it, this is perfectly natural for a guinea pig to, especially if it is a young male. Most guinea pig bites don't draw blood or hurt that much, so there's nothing to be worried about.
NO.If you wash a guinea pig in a week the next week it still be kinda clean but in 2 week 1/2 without washing it it might lose it's trust in you so like clean it with special guinea pig wipes with it so clean and it can trust you forever.
For long hair, wash them, dry them on the cool setting, and brush them. Short hair, brush them.
Yes as long as you clean it regularly and wash it at least once a week. The best thing to use is fleece though, its warm and the guinea pigs love it! - Guinea pig owner -
No you can't use human soap, you should use soap made for small animals like guinea pigs.
Best once a week because they are fragile
yes it is good to keep them clean they like warm water
yes you can
you mean girl guinea pig? Right?!? Because if not, at LEAST two weeks.