I was hoping some of you more experienced Guinea Pig owners could give me some advice please. Ive had 2 Guinea Pigs for over a year now and have recently got 2 more, they live seperate from my other 2. not long after getting them i took them to the vets as one of them had a white scabby looking thing on her ear and nose the vet said it was ringworm and prescribed Mycozole which i paid £33 pounds for.ive been putting it on for the last 2 days and it seems to be working.only thing is shes 12 weeks old and the Mycozole said do not use on animals under 200g, the vet did not weigh buttercup so i put on the smallest dose -1 pump.ive got her out today and she has another patch on her ear but its a yellow crust this time,ould this be the ringworm spreading as the first was white? also ive noticed a really big swollen lump behind her ear, I'm a bit worried that the Mycozole has done something to her as i was not sure of her weight, ive already paid over £50 in vets fees and they charge £20 consultation fee each time you visit, also i researched the net and you can buy Mycozole for £17, so why are they charging me £33. could any one help please? xx 