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.
It should not be used in: 1  patients who may be hypersensitive to any of the medication's ingredients, patients who have inflammation or infection in the area to be injected or inflamed skin. 2  Some formulations are not recommended for children and pregnant or breastfeeding women.ell your doctor immediately if you develop any of the following symptoms after a spinal injection of lidocaine: 1  pain or numbness in the back or lower legs, trouble walking, difficulty controlling your bladder or bowels, light-headedness, faintness, or slow heart rate or pulse.