Vicks VapoRub is used to relieve nasal  and congestion, sore throat and coughs due to colds.

Vicks VapoRub contains:

Menthol and camphor to calm a cough
Eucalyptus and menthol to relieve nose congestion
Eucalyptus to relieve catarrh
 These aromatic ingredients work by relieving nasal congestion (a blocked nose) and soothing irritated linings in the nose to effectively ease breathing and relieve cough.

Directions
Vicks VapoRub directions for use:
 

Adults:
Rub Vicks VapoRub liberally on the chest, throat and back.
Cover whole area for maximum effect.
Leave nightclothes loose to allow vapours to be inhaled easily - Or
Melt two teaspoons of Vicks VapoRub in very hot (not boiling) water.
Inhale the medicated vapours for 10-15 minutes.
Caution: Never re-heat the mixture.

Children (infants and babies over 6 months):
Apply lightly to chest and back.
Rub gently.
Leave clothes loose for easy inhalation.
Contents 
Vicks VapoRub contains: Levomenthol (2.75% w/w), camphor (5.00% w/w), eucalyptus oil (1.50% w/w) and turpentine oil (5.00% w/w) as the active ingredients.

Vicks VapoRub also contains: Thymol, nutmeg oil, cedarwood oil and white soft paraffin.

Warnings
Do not use Vicks VapoRub on babies under 6 months of age

If you are pregnant or breast-feeding ask your doctor or pharmacist for advice before taking any medicine.

If symptoms persist or in case of fever, consult your doctor.
For external use only
Do not swallow or place in nostrils