Question about Salt Water Flush

Hi everyone. I tried the salt water flush yesterday (2TBSP of Sea Salt in 2 qts. of warm water). Even though it made me sick and my eyes are puffy today, it worked. I was just wondering if there was a limit on how much you can use this. Is it irritating like any other laxative? Or is it safe to use whenever? I'm just worried about my body getting dependant on anything. I don't want to make things worse. Thanks.