We did a lot of research to decide how much helium to put in the balloon. It varies depending on the size of your balloon. Each cubic foot of helium can lift 28 grams. Each pound of free lift would mean 300 feet per minute of ascent rate.
Nerve damage to cutaneous sensory nerve occurs, but these grow back. Damage to the marginal mandibular nerve can occur as well, this causes a distorted smile, which usually resolves in a few months. Most importantly is that lipo of the chin is very safe. Good luck, dr b. ...Read more.
Any inflammation of this nerve leads to the symptoms you said. Tongue numbness and face numbness is due to labial / lingual / facial branches of the nerve { as you see only half of the tongue is numb }. The cause of inflammation needs to be found out. It is mostly the tooth infection which is the culprit. You may not feel pain in the tooth that severe earlier.