Redness, swelling and pain in the lower leg can be the result of injury, an insect bite, or even a blood clot. Blood clots can form in the legs due to poor circulation and long periods of sitting. If your lower leg symptoms are caused by a blood clot, it can result in heart attack, stroke, or pulmonary embolism (a clot in the lungs) if you fail to get prompt medical attention.
Apply ice to reduce swelling and inflammation in the lower leg if the symptoms are caused by either an insect bite or an injury.
Elevate the affected leg to help with blood return and to reduce swelling.
Avoid taking aspirin, just in case a blood clot is present. Ibuprofen is typically recommended as an anti-inflammatory for injuries.
Blood clots in the legs can present with redness, swelling and pain; this is a medical emergency. Stay off of the affected leg as much as possible and avoid activities that may increase blood pressure while waiting for medical attention.
If you do not know the cause of your lower leg symptoms, go immediately to the emergency room. If your symptoms worsen or persist after 24 hours, consult your physician.