 [ Symptoms ] i have boils all over my scalp and i could see pus coming out of it [ Disease ] if you are taking a regular over the counter multivitamin supplement you probably will suffer no harm from doubling up occasionally however doing so will not help your cold the common cold is caused by a virus there currently is no effective treatment for the common cold virus vitamins do not treat this virus if vitamins could cure the common cold none of us would ever be sick the truth is if you eat a well balanced diet you should be able to obtain most of the minimum daily requirement of vitamins and minerals through food vitamins and minerals are important for cell functioning if a person becomes deficient in a particular vitamin or mineral it can cause certain conditions such as scurvy for those deficient in vitamin c however these conditions are rare in the modern world many people believe taking massive doses of vitamin c or zinc at the first sign of a cold will minimize the symptoms or shorten the course of the cold there is no scientific evidence to prove this though the common cold lasts from 5 10 days if you do not treat it and about 5 10 days if you do treat it <positive_smiley> the best defense against the common cold is this handwashing during cold season wash and dry your hands frequently and avoid touching your eyes nose or mouth wishing you well