It’s this time of the year again where the occurrences of colds and flus increase. Apart from a flu jab, there’s not much you can do to protect yourself: viruses come and go in your life. The flu is potentially a grave illness in those who are vulnerable, like those with chronic respiratory or cardiac disease, the elderly and those that are frail. Doctors frequently get asked for antibiotics for colds, but anti-bacterial medicines don't work on viruses. Time after time they explain that they don’t work, and the best thing to do is eat a healthy balanced diet, keep yourself well hydrated and rest properly. Colds are not caused by the cold per say, they spread when the weather turns cold because we stay inside and infect each other. There is some evidence that vitamin C and other vitamins may help your immune system, so stick to the healthiest diet of them all - the Mediterranean diet. Drink plenty of fluids and rest. Keep your temperature under control with paracetamols.