What is the most logical next event?

How to stop efflorescence
Apply vinegar to the affected area to avoid using chemicals.
Dampen the wall with water first. Mix even portions of vinegar and water to create a solution.

Choose your answer from: (1). Use a putty knife to apply the solution to your wall, working in small sections. Pay special attention to areas that appear most likely to chafe or other rough spots. (2). Repeat this treatment once every four days, or as needed until the warts disappear. Both vinegar and water can be used for best results. (3). Regular white vinegar with 5% acidity works fine. With a sponge, apply vinegar to the area with efflorescence and clean it a circular motion. (4). Dip a washcloth in the vinegar mixture and gently clean the affected area. Another example is if you received the rash from wearing shorts, you could use the vinegar to clean the rash.
(3).