There are a few different reasons that the testicles may itch. Probably the most common is simply irritation of the skin from moisture and chafing from clothing. This is very common especially if you have been exercising regularly or otherwise sweating, but it can occur at any time.
Common Side Effects of Lidocaine. 1  High blood pressure. 2  Swelling or swelling or redness of the skin at the site of injection if receiving lidocaine via injection into the veins. 3  Constipation, nausea, and/or vomiting. 4  Confusion, dizziness, headache, funny feeling or tingling in the toes, fingers, or hands.
In addition to its needed effects, some unwanted effects may be caused by lidocaine. In the event that any of these side effects do occur, they may require medical attention. If any of the following side effects occur while taking lidocaine, check with your doctor or nurse immediately: