Mercurius Iodatus Ruber 30 Liq 30ml has a very remarkable effect on sore throat and neck. It has very useful effect on cracks and fissures in skin and ulcers. It also helps in healing glandular swelling, early stages of cold and cough, painful swellings, reduces stiffed muscles and relieves the inflammation of the tonsils. Adults should consume 4 drops in in a tsp of water and for children half of the adult dose should be given or as directed by your physician.