Apparatus and methods for the treatment of nasal tissue, particularly the nasal turbinates, are described herein. One method for reducing the size of the inferior nasal turbinate is to apply ultrasound energy to the tissue regions beneath the surface of the turbinate tissue. One instrument may be used to deliver ultrasound energy and to provide an infusion or injection of a fluid directly into the turbinate being treated. The injected fluid can be used to bulk up the size of the turbinate to ensure that the ultrasound energy is properly delivered directly into the intended turbinate tissue. Accordingly, fluids containing anesthetics, fluids infused with analgesics, etc. may be used for pain management while other medications, such as non-steroidal drugs, steroidal drugs, anti-inflammatory drugs, anti-histamines, anti-bacterial drugs, etc., can also be used.