A pick a day will be a very small price to pay. Advance cases of thrush are life threatening to your horse. Some cases may benefit from on oil-based hoof dressing that acts as a repellent of water. Rest is its only cure. Hoof padding under shoes is not a cure, but a prevention.
Pads provide protection against potential bruising.
Pads may have extreme negative effects if put on an existing bruised horse. Interfering limbs can be helped with improved riding skill, conditioning of horse, and routine farrier work. Protective boots are recommended during these times of need. Most farriers recommend anywhere from 6-8 weeks varying among each horse each season. Most healthy horses can be barefoot if they are in a controlled environment.