All medications should be treated with respect. Notably, some very common cough and cold medicines have been found to be unsafe in children, sometimes even deadly. Some commonsense principles can lower the risk-
Give medications only on a doctor's advice. Although you can buy most medications without a prescription, it is still best to ask a doctor before giving any medication to your child.
Keep medications in a locked cabinet or drawer. Even timid children have been known to climb up to high cabinets or shelves when curiosity drives them.
Don't put your trust in childproof caps. They will slow a persistent child down, but they might not stop her.
Pay special attention when you have visitors who might be carrying medications with them, or when you and your child visit others homes. A handbag left sitting on a low table is a tempting target for a toddler.
Tell your child that any medication you give her is medicine, not sweets.