My 12 year old who has been lame for about 3 weeks is baffling me still. I am treating him for thrush with hydrogen peroxide while he's resting. This is something I do periodically because he almost always has little bit. He is always really good with his feet so he surprised me today by reacting like it really hurts when I treat him. He has recently been trimmed and the farrier said he didn't really see any thrush in his front feet (we always take note becasue he's prone) and also when he went for his lameness and radiographs (all clean) he didn't mention anything about possible trush causing his lameness.
My question is, Could there be thrush only up in his sensitive tissues without seeing or smelling anything on the outside? Or do you have any other ideas what could cause this reaction? I wondered also if flexing the pasturn when I pick up his foot was hurting him so I walked him off right after putting it down again and he looked fine. THANKS.