1 It may cause rashes in hypersensitive people.  Iodine contrast can also cause an allergic reaction. Itâs an X-ray radiocontrast agent used for intravenous injections. Contrast dyes containing iodine have been responsible for severe allergy reactions (including deaths) in a limited number of hypersensitive people.
Do not resume a rigorous workout, because of the risk of further injury to the sore muscles. Massage is another way to reduce soreness. Massaging the muscles and promoting proper muscle relaxation will help keep muscle contractions down to a minimum.
Muscle pain that shows up a day or two after exercising can affect anyone, regardless of your fitness level. But donât be put off. This type of muscle stiffness or achiness is normal, doesnât last long, and is actually a sign of your improving fitness. Dr Jonathan Folland, an expert in neuromuscular physiology from Loughborough University, explains how to avoid sore muscles after exercise.