I was taught how to make this a few years ago and its fairly easy if a bit arcane. The flip side of a road opening is a cleaning. A day of being safe and healed if sleepy. Its a bit more than just a salt bath for reasons I will describe below.
This is what you need:
Salt. Any old salt will do, you could mount an expedition to the Himalayas, mine rock salt and bring it back or go to Tesco. This time I am actually using Himalayan salt since I have some, but that is not essential as long as you get salty saltiness.
Colognes. Go to the Hoodoo section in Boots and get Eau de Cologne, Lavender and Rose.
White flowers, any ones will do.
Florida Water. (Hint, Ebay)
Spring Water, I just use the cheapest six pack in the supermarket.
Extras: Whatever you want, cinnamon is good as is Rose EO.
Salt baths are important, they strip off all the negativity. However they can also leave you very open. So then you have a salt bath it is important to replace what was removed with positivity. You can use anything, cinnamon tea is good too but this bath has it all.
So, spend some time fussing as to what container to use, tip it all together and pray over it. It doesn’t matter what your religion is, I just call the Goddess in and ask her blessing. Let it cook for a time them strain out the plant material, add some vodka as a preservative and pack it back in the bottles. It will keep for months.
Then since I am a coward who hates the cold, I fill the sink with hot water and pop a bottle in so it warms, take a shower and then tip it over my head. Cleans all the spooky nasties away. Try it after a day in a city and you feel wonderful and clean.