As with any medical procedure, home catheters have a risk of complications. These can include infection, bleeding, or local anesthetic toxicity. Watch for redness, swelling, pus, or tenderness at the insertion site of the catheter, which are signs of an infection. Local anesthetic toxicity can cause dizziness, a metallic taste in the mouth, numbness around the lips, ringing in the ears, sudden anxiety or heart palpations, or seizures. If any of these symptoms should arise, the catheter tubing should be clamped and you should call us immediately at 617-355-6000 and ask to have the Acute Pain Service paged.