First thing you need to do is dump your vet. You'll need to find a special vet that is cavy savvy. These vets are hard to find. T
hey are exotics vets, who specialize in cavies aka guinea pigs. You can find vet referrals by hitting a couple of websites such as
Guinea Lynx :: Finding a Veterinarian (they have a whole section on choosing vets) as well as here:
http://www.cavyspirit.com/vets.htm these are my first choices since I've found their information honest and reliable and they aren't run by breeders trying to sell you a guinea pig or by children or teenagers (there are several forums in that category). You can also try asking for referrals for your area in the forums on GL or here or at
Guinea Pig Cages, Your Cavy At Home or
www.cavymadness.com
IF you can't find a vet close enough who is cavy savvy you can try educating your own vet, or see if you can treat yourself. This is an urgent matter, and can't wait for weeks. It will get worse until your pig is covered in scabs and then dies. Happens all the time. Do not listen to anyone telling you to use shampoos or powders. The ONLY treatment for severe cases of mites is Ivermectin, and if you call a vet to ask how they treat for mites, that is one way to tell if they know what they are doing.
Your vet should have treated him for mites on the first visit. This is standard procedure for guinea pigs, since they take the
longest to treat, and are the
easiest to treat of all possible diagnosis for those symptoms. Any vet who knows cavies knows this. It's poor medical practice to treat for the least likely diagnosis first.
Are these patches in circles? If not, that is another indication that this is not ringworm aka fungus.
Guinea Lynx :: Parasites
Guinea Lynx is a medical site that has a great deal of valuable information provided by cavy savvy veterinary professionals and I would also recommend spending several hours reading over their Care Guide and Medical Information pages. It will make a huge difference for you and can give you an education that you couldn't get anywhere else. The site is managed by cavy rescues and fully supported by us folks here at GPH.
Right now, you need to get this treated immediately and the fastest way is to get a vet to treat for mites with a shot of Ivermectin. At the stage you are at now, it's vital that this happens soon. Each day that goes by is one more day of misery and more days of healing after treatment for your little one.
You can treat for mites at home but if your pig has any scabs then it's past the home treatment and needs a professional who takes his job seriously and will begin a rigourous treatment for mites.
Your vet should have known better and it's very upsetting that he sent you home for vit c deficiency! If you read up on the symptoms of scurvy, you'll see that scabby patches of missing hair is NOT a symptom of it!!
Guinea Lynx :: Scurvy -- Vitamin C Deficiency
Grr! I can't believe these people go through 12 years of college still come out so stupid! Anyway, mites are VERY common among guinea pigs, far more common than scurvy or ringworm.
Let me know if you have any problems locating a new vet. I'm sure I could help you locate one. If not, I can help you find out how to fix this right away.