Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to get rid of shin splints fast [title] Rest your legs. [step] Stop running or training for a few days. The continuation of your routine will make symptoms worse, so take it as a sign that you need some rest.

Ending1: [substeps] Shin splints are caused by straining and overworking the muscles and tendons in your legs. A few days of rest will be necessary to begin to reduce pain and strain. Ending2: Get some rest so your legs are limber for when you need them in the future. [title] Ice the shin with a pumice stone. Ending3: Start to see a doctor as soon as you can to ensure that any leftover soreness has passed and it doesn't require extra precautions. Try to rest as much as possible throughout the day. Ending4: Regular walking and stretching will also help relieve the tension and the thirst, too. [title] Try alternating running from one leg to the other.

Answer format: ending1/ending2/ending3/ending4