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1 However, taking vitamin C before the onset of cold symptoms may shorten the duration of symptoms. 2  Vitamin C may provide benefit for people at high risk of colds due to frequent exposure â for example, children who attend group child care during the winter.
For a sudden injury, don't use heat for the first 48 hours. At first, ice helps relieve pain and reduce swelling. Try applying ice to your shoulder for the first 48 hours after discomfort begins: 1  To avoid harming your skin, place a thin towel between the ice pack and your body, or put a pillowcase over the ice pack.2  Apply ice 2 or 3 times a day, up to 20 minutes at a time.or a sudden injury, don't use heat for the first 48 hours. At first, ice helps relieve pain and reduce swelling. Try applying ice to your shoulder for the first 48 hours after discomfort begins: 1  To avoid harming your skin, place a thin towel between the ice pack and your body, or put a pillowcase over the ice pack.