
My ten year old dog has been on medrol,a steroid, since she was one and a half.She is 23 kg and takes just 8 mg every second day,for all of her life.This has saved her life.Because she needs this drug,the low dosage does not cause her to drink/urinate in excess.At her worst she was 14 kg and had ulcers all over her body,under her tongue and in her throat caused by proteus bacteria.This has escaped from her compromised gut and established itself in other areas of the body...it was resistant to all twelve groups of antibiotics and very difficult to combat.
...... she has a low immune system(tested with Ana test) and cannot fight her own gut bacteria...she would periodically have helicobacter(which caused gastric and intestinal bleeds).She suffers from SIBO, and any sweet or inappropriate food can trigger a bacterial overgrowth (especially clostridium and e.coli). when this happens the faeces would be black,tarry and have an offensive ,characteristic smell.
When your dog has diarrhea ,do get the faeces tested to see what bacteria are in there ...this is very important as it will affect which treatment your dog will need.
She also takes tylan antibiotic powder,every day,just a I/4teaspoon. This keeps the bad bacteria at bay.
She takes ranitidine to protect her gut from the antibiotics, and a probiotic every so often.Natural live yoghurt is also given to boost the gut flora and also florentero,a supplement ,for similar purpose.
On the days she wouldn't eat due to nausea we used to feed tins of hills a/d food,for convalescent dogs....I still keep these handy as they are useful to give when medicating to feed the pills with a food that will help protect the gut.
it has been a hard slog to keep her going but worth it as she is my heart dog and such a character!
I would suggest you have your dog tested for food intolerance,a blood test..try changing diet...ie exclusion diet,
Some recommend going to a raw diet...but that is a personal choice.
my dogs case is extreme ,but it gives you some ideas to discuss with you vet.ibd is difficult to diagnose and even harder to get on top of.Good luck with this.