My method for downing bottles of robitussin:
Get the tap running and keep it running, making sure that the flow is sufficiently cold.
Fill yourself a large glass of water and set aside.
Get your toothbrush prepared and ready with toothpaste and place it next to the glass of water.
Block your nostrils and hold them now proceed to rapidly chugg your tussin.
When your tussin is empty take your glass of water while still holding your nostrils blocked and chugg that, refill with the running water and chugg that glass.
Still keeping your nose blocked proceed to brush your teeth and then spit and rinse.
You can now release your nostrils and you should have successfully drunk your tussin with minimal pain and a minty aftertaste

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