314 
THE VETERINARY SCIENCE 
4. Corns. 
Corns may affect any foot or either heel. They are, 
however, more generally found on the front feet and more 
frequently affect the inside heel. 
Symptoms. — The horse is more or less lame in most 
cases,, and is more so just after he bruises it. When stand- 
ing, if it is in one foot, he points that foot out; if in both feet, 
he first points one out and then the other, changing from one 
to the other frequently. He goes pretty well 
on soft ground, but gets lame as soon as he 
strikes a hard piece of road. On raising the 
foot and tapping or pressing on the affected 
quarter, he flinches. In taking the shoe off 
and paring down the quarter, a red spot in 
the corner of the sole is exposed. In case the 
corn becomes bruised and festers, the symp 
toms will be more severe. He holds up the 
foot and in walking he steps long, and on the 
toe, then hops on the other foot. The affected 
quarter is hot and tender when pressed upon. Fig. 57.— Position 
and if he does not soon get relief it festers * 
and breaks out at the top of the hoof. 
Treatment. — In many cases it is not necessary to lay him 
off^ but shoe him so that the shoe will not press on the heels 
and apply a poultice of hot linseed and bran to the foot for a 
few nights. A bar shoe is a very good one to put on, as it 
throws the weight on the frog and relieves the heels and 
quarter. If a festering corn, remove the shoe and pare down 
into the corn until you strike the matter. Allow it to escape ; 
this will give him relief. Then poultice as above mentioned 
and allow the animal to rest a few days, and when you are 
going to use him again shoe him with a bar shoe. See that 
the shoes do not press on the heels and quarters, and if the 
soreness continues, blister around the affected quarter with 
the same blister that is used for chronic founder. For after 
treatment keep the animal shod regularly and see that the 
shoes do not press too much on the heels. 
5. Thrush. 
This is a disease that affects the frog. It is mostly met 
with in the hind, but often affects the front feet. 
