Facial and submental liposuction produces swelling, bruising, and numbness of the jaw and neck that eases over two to six weeks, with a soreness similar to muscle ache when moving. The chin strap or compression garment has to be worn as instructed. Contour irregularity, firmness, asymmetry, or loose skin over the treated area can persist for months. Fluid collecting under the chin and infection are uncommon. Temporary weakness of the lower lip from irritation of the nerve along the jaw is rare.
Threads passed under the skin leave short lived swelling and bruising, with a stretched feeling on wide mouth opening for roughly ten days. Small dents at the fixation points and mild unevenness of the cheek usually smooth out. Sides may not settle evenly, and a further session is sometimes required. Palpability of a thread, extrusion through the entry point, or infection is uncommon and may mean removal. The result diminishes as the material is absorbed.
Buccal fat removal is carried out through the inside of the cheek, so swelling, stiff jaw movement, and discomfort with chewing are usual for one to two weeks, and a soft diet is advised. The wound inside the mouth may feel rough while it closes. Bleeding, infection, hollowing of the cheeks that becomes more visible with age, asymmetry between the sides, and rare injury to a branch of the facial nerve or the parotid duct are recognized risks.