Your body may absorb too much of benzocaine if applied over a large area of the body, in case you apply heat to the affected area,
or if you cover the area on which the
benzocaine is applied. Please consult a neurologist for the symptomatic treatment. Taking Renerve capsules may help. Take a good diet rich in antioxidants- vitamins A, E and C, and Omega 3 fatty acids. Hope this helps you. Take care and regards!