Drink plenty of water for skin problems

Unfortunately, the company ceased trading in July and I am devastated. Before winding up, the company sent me a list of over-the-counter alternatives, but I can’t imagine any of these being as good. I hope you can help, as I don’t know where else to turn.
particularly for a chronic skin disorder, such as rosacea, where solutions are few and far between, only to find that it is being discontinued.