Which type of punctuation is used after and introductory statement that precedes a list or an enumeration of items?

Ineed ! which of these 3 are correct answer? i need . (1)there are a number of ways to tell if a person has a drug problem. (2)first, a drug abuser cannot stop using or drinking. (3)secondly, the person turns into a "different" person when she or he is using the drug, acting in unusual ways. (4)another signal is that the user makes excuses for using drugs. (5)he or she will say that it was an especially bad day at school or work, or that a relationship has become very stressful. (6)fourth, an abuser will try to cover up drug use, or will pretend that it "isn't that bad." (7)yet another signal is that the abuser will forget things that happen while he or she is high or drunk. (8)finally, the abuser will be the last to recognize that he or she has a problem. 1. the major supporting details of this paragraph are a. ways to get for drug abusers. b. the problems of drug abuse. c. ways to tell if someone has a drug problem.

It is very important to promote self esteem in young children

Do not use this medicine with milk, cheese, or other dairy products. what end punctuation needs to be added to the above bolded word?