Hard to tell from your description. If you are concerned you should have him looked at by a veterinarian.
"The best things in life are nearest: Breath in your nostrils, light in your eyes, flowers at your feet, duties at your hand, the path of right just before you. Then do not grasp at the stars, but do life's plain, common work as it comes, certain that daily duties and daily bread are the sweetest things in life. " Author: Robert Louis Stevenson
I'm assuming you mean liniment? Why are you using liniment & what kind? How old is the horse? What has been done with her/him? Did the farrier give you any more information? Have you seen any swelling? Has the horse's habits changed i.e. is she/he standing differently, not moving as much, laying down more?
As Hook suggested...call a vet.
Karen ~ Trails & Joe Paint Gelding Paoli, IN
"My treasures do not sparkle or glitter, they shine in the sun and neigh in the night."