Please choose the correct ending to complete the given sentence: Health: [header] How to stop ovarian pain [title] Apply a heating pad to the area. [step] Heat can help to treat pain as it slows down the transmission of pain signals in your body. It also helps to relax tense tissue and muscles.

Ending1: Put a heating pad wrapped in a thin towel over your lower abdomen to help ease the pain. Leave the heating pad on for 20-30 minutes at a time. Ending2: [substeps] Start by applying warm water to the affected area. Take a hot shower immediately after exercising or bathing. Ending3: [substeps] Place a heating pad directly over the area you plan to treat. Hold your pad in place with a hand on each side, then pull the heat pad up towards your inner thighs. Ending4: [substeps] Place a hot water bottle over the injection site. If the area feels hot, you'll receive a notification that the injection has worked.

Answer format: ending1/ending2/ending3/ending4