My guinea pig has a crusty lump. How can I help her without a vet?

In my experience the huge majority of skin issues in guinea pigs falls into two categories: mites and fungal. It's uncommon to see flaking skin and hair loss without it being one of these disorders. Ringworm would be a concern and is very common in guinea pigs. Instead of being a worm, it's actually a skin fungus, and doesn't always have the classic "ring" shape. The only way to diagnose ringworm in guinea pigs is doing a fungal culture where you collect hairs and put them on a culture medium. It can take 10-14 days to get a result, though most positives show up within the first week. If you don't want to do the testing then what you can do is treat those scabs with an over the counter anti fungal cream like clotrimazole. It is basically jock itch cream. Apply a thin layer 2 times a day. It won't hurt anything if it is not ringworm but if it is ringworm, it will help. If you are going to shampoo him I would use a medicated shampoo like this one: https://www.1800petmeds.com/Malaseb+Shampoo-prod10667.html Lather it on, let it sit for 5-10 minutes and then rinse. The contact time of the shampoo is very important! This shampoo has an antifungal agent in it as well as an antimicrobial agent. If you try the ringworm cream and shampoo and it doesn't help at all within 7-10 days then I would recommend you get a second opinion from another vet and find a vet that specializes in treating exotic pets as he may have skin mites. Skin mites in these pets will always cause itching, sometimes severe enough to lead to seizures. If he is itchy then skin mites are very likely. Skin mites need to be treated with Ivermectin injections spaced 10-14 days apart and need to be done by a vet. Usually 2-3 injections are needed to clear the mites. If your vet doesn't specialize in treating exotic mammals/pocket pets then I would suggest you find one that does. I found this vet in your area based on your zip code: http://www.acsevh.com/ I hope this helps. Best wishes!

Hello. Thank you for using PetCoach! This looks like a ringworm lesion to me. http://www.peteducation.com/article.cfm?c=18+1800&aid=2494 You can try using a topical anti-fungal medication like Clotrimazole to see if it helps. Apply a thin layer to the lesion twice a day. https://www.walmart.com/ip/Antifungal-1-Clotrimazole-USP-Cream-1-oz-tube/950932820 Remember two important things: 1. It can take weeks to months for ringworm to resolve. If you are not making much progress with the cream after a couple weeks I would take her to the vet. They can give you an oral medication to use that may be more effective. 2. Ringworm can be contagious to people so wash your hands thoroughly after handling her. Hope this helps. Best wishes.

Thanks for reaching out about Tequilla and including a photo. This dermatitis is possible fungal (ringworm). A veterinary visit is needed to diagnose and prescribe a treatment. You can also contact the store for assistance. Good luck.

Poor Betty this looks sore! I would say this is due to an infection of some sort. It could be bacterial even coming up from the resp tract but the flouroquinilone should have helped. Otherwise it may be a parasite or fungus such as ringworm. I would get a skin scrape checked and have a hair brushing sent off for ringworm. I know you have tried antifungal cream, sometimes canestan works but at times they need stringer treatment from the vet. You could also try an antiparasite treatment such as xeno.

This could be potentially rubbing against cornea and in the long term cause both chronic irritation/inflammation (the cornea can get darker than normal) and possibly corneal ulceration. This lump/growth should be ideally examined by your veterinarian to have a definitive diagnosis. Your vet will examine it and possibly perform with an FNA (fine needle aspiration) or a biopsy. Differentials would include skin cyst, infections or benign or malignant type of tumors. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

Thanks for using PetCoach. There are several possibilities for Pietje's crusty eyes. The first is to make sure that he has adequate Vitamin C supplement. This needs to be in the form of fresh fruits and veggies as well as fresh food, and Vit C supplement (not in the water). A bit more on feeding https://vcahospitals.com/know-your-pet/guinea-pigs-feeding The other differentials include mites or ringworm. A vet visit can help diagnose either of these conditions. The vet may recommend a fungal culture or skin scraping to make a diagnosis. https://vcahospitals.com/know-your-pet/guinea-pigs-problems I hope this helps.

Thanks for reaching out about Meeko and including pictures. This appears to be benign growth called a trichofolliculoma. These are tumors of the skin with very low likelihood of metastasis but likely to recur if not surgically removed. Hair should be gently clipped around the mass in an attempt to decrease bacterial contamination. Clean cotton tipped applicators can be used to gently remove the debris from inside the lesion. Gentle flushing with sterile saline can help irrigate the lesion, then allow to heal on its own. As previously stated, these are likely to recur. Do not apply any topical antibiotics such as Neosporin or triple antibiotics since guinea pig gastrointestinal tracts are very sensitive to antibiotics. Good luck.