How do you get rid of a guinea pig cold without going to the vet?

I would NOT recommend this! guinea pigs when sick often stop eating and drinking. this is cause in the wild there is no medicine and they will die quicker that way. take your guinea pig to the vet immediatly so he/she can start feeling better. If you really can NOT do so then make sure your guinea pig has plenty of food, water and warmth, they should not be too warm however, good luck!