What conditions that could lead to numbness and tingling in the nose and mouth?

Nose & mouth numb. Numbness and tingling in the nose and mouth are likely from something interfering with the nerve the provides sensation to the area. This can be from infection, swelling or irritation of the nerve. The nerve may be pinched or compressed by swelling in the adjacent area. Please see you primary provider or ear nose and throat (otolaryngology) specialist for evaluation.