 [ Symptoms ] electric shock in leg hi there i have never had this symptom before i have ms also but not sure if this is a new symptom i just started having an electric shock like symptom in my right leg when resting but especially when walking is this ms related or something else [ Disease ] i am not sure either since i can not see or examine you as a matter of fact you can not see inside your own ear either so it would be advisable for you to see a medical provider someone who can the most logical reason for your ear pain is an infection so you are correct fingernails are not the cleanest part of our body so when they scratch the very sensitive skin lining of the ear canal an infection can happen these infections can be mild and only need topical antibiotics or they can worsen and cause a deep painful infection called cellulitis