Difficulty swallowing can occur generally lasting for a few days post treatment and is thought to be due to swelling of the area. A “pins and needles” sensation, itching, skin tightness, headache, nausea, discoloration of the skin, swollen glands, hives in the area, and neck or throat pain, ulceration of small areas of the skin have also been reported. An uncommon side effect is temporary injury to the marginal mandibular nerve resulting in an asymmetrical smile lasting an average of 6 weeks. No cases of this side effect were permanent. In the beard area of men injections could cause small patches of hair loss in the treatment area.

You may not be treated if:

  • You are pregnant or nursing.
  • You have difficulty swallowing.
  • You have nerve injury or weakness in the lower face.
  • You have an infection in the area.

Inform your provider if:

  • You are on blood thinners.
  • You have had procedures or surgery of your lower face or neck.