99.9 percent sure my boys have a fungal infection.

[BlueButterfly]

I've been a little skeptical if my boys had a fungal infection since they came home, but now I'm positive. I was holding Sundae, and I saw he had a sore on his behind. I would have thought it was a bite mark, but there was a clump of fur held together with skin stuck in his fur near it. I tried to take a picture of the sore, but I have to move his fur around to get it to show, and whenever I do that he starts burring and tries to jump on my chest. They've had all the signs of a fungal infection (scratching, dandruff, clumps of fur falling out) except balding on their face. I ordered the gorgeous guineas shampoo that's supposed to help, but that's more of a preventive to stop it before it gets bad. It hasn't arived yet, but I still plan on using it when it gets here. Okay, actual questions time.
Can they be treated at home, or do I need to take them to the vet?
If I can treat them at home, what should I use to treat them?
Should I let the vet take a skin scraping if I take them in?
Should I treat my girls too? They're separated of course, and across the room, but they've been itching and having dandruff lately.
Should I treat for mites too? I'm pretty positive it's a fungal infection.
Thanks in advance!

[bpatters]

Do NOT let the vet take a skin scraping -- that's usually used for mites, the results are wrong more often than they're right, and it hurts the pig.

Read www.guinealynx.info/fungus.html -- it's easy to treat yourself.

But, it is very contagious, and you should wear gloves and change clothes when you're finished dealing with them. Also, throw away any wooden items in the cage, thoroughly wash anything that can be washed with bleach, detergent and hot water, and clean the cage frequently.