Thrush is a general term used to describe either a fungal or bacterial (or often both) infection, primarily of the frog. What type depends on the environmentof the horse and the type of 'bugs' that it encounters. In a nutshell, think athletes foot for horses abd like athletes foot it is very common place so much so that it is often overlooked and or considered 'normal'. Most often it is not a major problem but be warned that once established it can lead to lameness, abscesses and if left untreated and the infection penetrates deep into the foot ultimately the horse could become useless...
What to look for:- A healthy frog should be the consistency of hard rubber (like on a tyre), it should be fat and full and is very rarely seen... there shoudl be no bits hanging off or any pits, holes, mushy soft bits, slimey black bits, or indeed any discernable smell when the feet are washed off and dry... really. Most horses have thrush and the smell is easily discernable once you know it, ti is not like poo or pee but is a sickly sweet pungent back of the nose make you pull your head back smell... If in doubt, pick out and clean the feet, stick your nose right next to the frog and take a deep sniff... if your horse has thrush... you will know it!
What causes it? :- bacteria and fungi... basically they are eating the frog tissue and multiplying, burrowing deeper and deeper into the foot... it is exacerbaated by damp conditions, lack of cleanliness, standing around in pee and poo, not being able to clean under where the shoe is etc.
How do I treat it:- clean and pick out the foot. Remove all dead and infected tissue (NB best done by an EP, vet, farrier, person who knows what they are doing, in that order) we are not talking surgery or invasive trimming and to avoid this it is imperative that you know how far you can go (to the milimeter) as under the insensitive frog is a sensitive frog with nerves, blood etc and you certainly do not want to open that up especially when there is already infection around...
Scrub with one of the following (nb I tend to try the cheaper products first and find that different horses in different situations respond better or not at all to each so try one and if it doesnt work try another... Milton solution, borax, salt water (especially sea water), hibiscrub, betadine, sugardine, vinegar, once dry a good coating of sudcreme (yes like for under babies nappies, does exactly the same thing) wont hurt. Repeat every day for a week or until fixed... If the thrush is persistant you coudl try cleantrax (some times very effective, some times not at all) colloidal silver, or some tea tree oil products all of which I have known to work.
Prevention:- Keep the foot clean and dry idealy with out allowing bugs poo damp soil to be held against it. Allow the foot to move and to be healthy as a healthy foot is very resistant to such infection.
Hope that helps..
