Yes you can use Vicks VapoRub to help relieve a cough as well as congestion.
Just apply some Vicks VapoRub to your nostrils or on your chest especially when sleeping and the Vicks VapoRub can help relieve the cough and help with any possible congestion you may have.
You can also use some Vicks VapoRub in a vaporizer to help release the Vicks VapoRub into the air which also helps with a cough.
Another home remedy for cough is to take a spoonful of honey twice or 3 times per day since honey has been used as a natural cough medicine for many years.
Adding some honey to some hot tea is also good at helping get rid of a cough too.
Halls Cough drops are also good for coughs and sore throats and I use them myself and they really do work.
Use a humidifier in your home or bedroom at night to help add moisture to the air which helps you breathe better and helps add moisture to your throat and lungs which helps with coughs as well.
Even taking a steamy hot shower can also help with a cough or congestion because the steam from the shower will help add moisture to your throat and lungs so the cough clears up.