You mentioned two examples: (1) an existing fireworks stand that is allowed to operate at the same location although the sale of fireworks is otherwise prohibited; and (2) a sign that was erected in violation of a zoning ordinance but which has never been removed.
New hair will not grow back in the previously waxed area for four to six weeks, although some people will start to see regrowth in only a week due to some of their hair being on a different growth cycle.
The rate of hair growth varies from person to person but most people will have a full covering of hair after about three to six months, although for some people this can be patchy. Many women wonder if there are any particular hair products that will speed up the growth.