Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Treatments (cost_of_treatment VARCHAR, date_of_treatment VARCHAR)

### Question ###
How much does the most recent treatment cost?

### Accurate SQL ###

SELECT cost_of_treatment FROM Treatments ORDER BY date_of_treatment DESC LIMIT 1