We have made it to the halfway mark in Onyx’s treatment.
Six weeks of injections. 42 days of stress, tears, sleepless nights/days, and cautious hope for my little man.
Six weeks ago, I can vividly remember sitting on my kitchen floor in tears thinking, we’re never going to be able to do this. Onyx’s first shot was a disaster, his second shot only slightly less so. Six weeks seemed impossibly far, twelve weeks wasn’t even fathomable. But we’re here.
And it’s working.

Day 1 to Day 16
Onyx has made tremendous improvement. He’s up to 9.1 pounds from 7.95 at diagnosis. The inflammation in his eyes and gums is gone. His fur is fuller and softer. He is playing again like a normal kitten (read: terrorizing his sister and tearing up my house). Most notably, his bloodwork has been within normal range since week 2.

FIP is characterized by high globulins (blood proteins) and a low A/G ratio. Onyx was back to normal levels at week 2.
We still have a long road. Assuming Onyx’s symptoms and labs remain stable through the next 6 weeks, he still needs to get through an additional 84 day observation period before he is declared “cured.” He could relapse at any point during this time, and while I am trying not to think too much about that possibility, I am also trying to prepare myself for whatever this horrible disease could throw at us. In the meantime, I’ve been focusing on the best supportive care for him with the help of my vet, who has been a tremendous resource and very supportive of his treatment.
Unlike me, who lately gets the bulk of my nutrients and protein in powder form with hefty doses of caffeine in between, Onyx has an excellent diet & supportive care regimen. I am keeping him on kitten food through the duration of his treatment because it is higher in calories and nutrients. He also gets jarred baby food, which helps both his calorie and water intake. This brand is made without onion and garlic in the broth, both of which are toxic to cats, so Onyx and I are both happy with the arrangement.

He is getting weekly B12 injections to prevent anemia, which is a common complication of FIP. The GS medication is very hard on the liver so he is also getting Denamarin, an over the counter liver support medication, daily. Based on his labs, both of these medications seem to be doing their job.

Onyx started B12 injections and Denamarin pills at week 2. Since then his red blood cell levels and liver markers have improved.
In terms of side effects, our only major concern is his skin. The pH of GS is said to be ~2. Comparatively, the pH of a cat’s skin is typically somewhere between 6 and 7 (fairly neutral). A pH of 2 is closer to the acidity of pure lemon juice or vinegar, so if you can imagine having lemon juice injected under your skin daily… Yeah, this medication burns. A lot.

Onyx hates his mohawk, but the trim makes it easier to clean his skin before/after injections and monitor for sores. Mom thinks he’s the most handsome no matter what his hair looks like.
Of the 40+ injections Onyx has received, he has only gotten 2 noticeable concerning skin sores, but he has several areas of toughened skin with small scarring. We (the vet and I, who is basically my new best friend) don’t want him to be at risk for secondary infections though these sores. The tougher skin also makes it harder to find places to inject.

A healing chemical burn sore đŚ
For the sores themselves, I have been using Vetericyn antimicrobial spray to help keep the wound clean and protected. Vetericyn is available on Amazon for $14, and is a popular choice among FIP parents for wound care. The vet also gave him a prescription for Mupirocin, a broad spectrum antibacterial ointment. I’m hoping that the ointment will help his wounds heal a bit faster and get him feeling better.

I also ordered a LumaSoothe for my spoiled boy. LumaSoothe is a light therapy for pets used for wound healing, skin infections, and reducing inflammation. The LumaSoothe doesn’t feel like anything (I tested it on myself…), and all you do is run the device in small circles over the skin, but that doesn’t mean that Onyx is willing to sit still for what is supposed to be a 15-minute treatment. Without the benefit of consistent treatment, it’s hard to tell if it is making a difference or not, but given the positive reviews we are going to keep trying.
He is also going to get Vitamin E oil massages on the closed areas of scar tissue because, again, he is the most spoiled cat in New England and probably the entire continental United States (also, the vet tells me this will help soften the skin making injections easier).

Despite the ups and downs, the anxiety and exhaustion (and there is a LOT of anxiety and exhaustion…), it has been amazing to see Onyx behaving like a normal cat. He is so much more playful with Hazel, and it’s obvious that he feels a million times better. As much as he hates his injections (and he does), the 5 minutes of pain and angst are well worth the energy and life he now has in his days.
Many of you have reached out over the last several weeks, and I really can’t express how grateful I am for the kind words and thoughts. This process has been emotionally, physically, and financially draining. We’re ready to keep fighting through these next six weeks, but I would be lying if I said I’m not completely exhausted. I can tell that Onyx is tired of being poked and prodded, and I’m working 3 jobs to pay for his care. The support of family and friends is keeping us going through this next stretch, and I can’t thank you all enough. I hope that our next update will be about a healthy boy who is on to the 84-day observation period, so please stay tuned.
With lots of love & (cautious) hope,
Alyssa & Onyx

Mom, youâre embarrassing me. – Onyx































































































