Please have any new guinea pig vet checked as a matter of course. You can reclaim any vet from treatment that is necessary as a result of exposure in the shop by presenting your vet bill together with the sales receipt at the shop. This usually extends to any health problem that is cropping up between 2-3 weeks after the sale. It comes under the heading of selling damaged wares. You can also complain to the local council about trading standards if your guinea pig has been sold pregnant or with a transmittable infection or parasite infestation.
Ringworm and mange mites have their classic places where they start, but they are by no means always textbook. This is why a vet trip is so important. Please see a vet tomorrow during regular opening hours for a diagnosis and treatment if possible. If it is ringworm, please follow the hygiene advice in our guide; it is important to prevent it from spreading to others and from making a return. Ringworm is the one most transmittable and infective problem between all mammals, including other pets and humans.
Guinea Pig Vet Locator
Ringworm: Hygiene And Pictures
New Owners' Online Starter " Booklet" For Really Helpful Advice