You need to read the “histamine" article so you can better understand how to tell when you need more salt, more water or more potassium (which is found in most foods).
It is very important for you to have one of Dr. Batman’s books. A suggestion would be “ABC of Asthma, Allergies and Lupus” or his latest book “Obesity, Cancer and Depression”. The ABC book contains a lot more than what the title says. There are 6 pages in each book on why a person needs salt and what it does in the human body.