There is no quick fix for numbness or tingling after chin liposuction. These sensations should go away with time as the responsible injured nerves repair themselves over weeks to months.
It is normal to feel a sense of numbness afte liposuction of the chin (no matter what type of method of lipo is used) ... liposuction "injures" the nerve endings in the skin a little bit as a result of the manipulation to collect fat. The tingling is often evidence that the new fibrils are regenerating themselves. Not to worry -- usually the numbing and tingling resolves and you will have normal sensation.