Benzocaine gel is generally not harmful to the penis, but the one-time dosage should not be too much, and the frequency of use should not be too frequent, up to two times a week. Benzocaine gel is generally used for pain relief and treatment of recurrent mouth ulcers, to relieve inflammation around the mucous membranes, and can also be used on the penis, to treat glans sensitivity premature ejaculation. The use of this drug may appear skin bruising, shortness of breath, headache and dizziness, and other symptoms, usually the symptoms are not too obvious, will disappear on their own, do not need to worry too much. According to the size of the glans, take the right amount, apply it thinly, wait until there is a numb feeling, wipe it off with a wet tissue, usually half an hour or an hour before sex. The drug should be used correctly under the guidance of a doctor, usually keep a good mind, develop good living habits and eating habits.