How can I treat a numb lip and possible nerve damage?

Tonsils removed 10 days ago. Right after surgery, I noticed that the inside of my lower lip was cut and experienced numbness in the middle section of my lower lip. The cut healed in a couple days but the numb feeling has yet to go away/improve. Will I get full feeling back in my lip? Is there anything I can do to speed along the process? Specific steroids/vitamins that might help? Couldn't find a category that fit but hoping damage to the mental nerve is familiar to many of you. Thanks.