Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the treatments for Preauricular sinus ?
    ### Response:
    How might a preauricular sinus be treated? The majority of preauricular sinuses do not cause symptoms or problems unless they become infected. Common signs of infection include swelling, redness, fluid drainage, and pain. In these cases, treatment typically includes systemic antibiotics.
    