Can you fill in your profile and pool information so we all know what pool type/size/surface/pump/filter and location you are at. It really helps us to help you.
A couple notes, "Shock" is a product you buy in a store and not typically recommended here. "Shocking" your pool is a process described in the Pool School, and critical to the cleaning your cloudy or green pool.
If you have a small, Intex style pool and your water is clean and inexpensive, I am going to make SWAG and suggest you drain and refill, especially if you bought pucks or bags by the case or bucket and they have been you main source of chlorine. If you have expensive , well or pump water or a truck brings it, fixing it may be cheaper... but not always.