Revolution/LICE question

Lice on a guinea pig? Are you sure they're not Mites? You know, like mange mites? You should check with a veterinarian about your guinea pig just to be safe. If your guinea pig has mites, use Ivermectin.

Yes, Revolution works on mites and lice.

Guinea pigs do get lice. They can also get fleas but the most common parasite are mites because mites live dormant on guinea pigs.

He has both mites and lice. Although after 4 days, I've combed the nits out and his skin is clearing up and much less red.