Swirlz Solution is a medicine used to temporarily numb certain areas of the body. It is primarily used as an anesthetic lubricant to ease the insertion of medical instruments into the human body (such as catheters) and to relieve symptoms of painful inflammation of the urethra and bladder. This medicine is applied locally, directly to the affected area. The most common side effects of Swirlz Solution include redness, rash, burning, and itching at the site of application. These side effects are generally mild and transient. However, if any of these side effects persist or worsen, it is important to consult your doctor. Before using Swirlz Solution, it is important to inform your doctor if you have liver disease or are taking medicines for heart rhythm problems. Although medicines used on the skin are not typically affected by other medicines, it is still recommended to inform your doctor about any other medications you are taking. If you are pregnant or breastfeeding, it is important to seek advice from your healthcare team before using this medicine.