Alok adds: if a cold is once in a while dont worry it increses fighting power and thus increses immunity. If it is subsidede my lime water then great go ahead and have 2 -3 times . But if becomes chronic then definitely try Zinc in vitamins like easily available Zincovit. Zinc over all improves immunity and reduces chances of relapse of even other sickness.
Hot tip on beating common cold: Take zinc supplements
SURE CURE: Those who took zinc supplements within 24 hrs of the onset of a cold got better in a week,says study