I agree with AppyT.
But I'd also get a vet out to do a lameness check to make sure it is fully healed.
Boots with support will actually weaken the leg in the long run so if you ride without it that leg will be weak. The leg gets used to that extra support, so when taken off it's like
I'd possibly use polo wraps so in case while riding, if she hits it, it will take off some of the pressure...but the polo will not give any support. (On a side note: don't use them if you don't know how to properly wrap them...if wrapped wrong they can cause serious problems for the horse)