My suggestion with the Epsoms is start with half the dose, that would be 1/2 Tablespoon. Dissolve it very well in some lemon juice to make a "shot". Get your glass of water ready, slam the shot back and guzzle the water. The objective is to keep the Epsoms off the tongue. Once past the tongue, they will make you feel good most likely.
This will save you a lot of gagging and don't skip any doses, there will bet 2 at night and 2 the next morning. that is key too.