(1) OTC refers to drugs that can be judged, purchased and used by themselves without a doctor's prescription, which is referred to as OTC for short. As can be seen from the figure, the "OTC" mark on the drug instructions indicates that they are over-the-counter; This is for children.

(2) Over-the-counter drugs are mostly used for self-diagnosis and treatment of frequently-occurring and common diseases, such as colds, coughs, indigestion, headaches and fever. In order to ensure people's health, warnings are marked on the packaging labels and instructions of over-the-counter drugs in China, which clearly stipulate the use time and course of treatment of drugs. Non-prescription drugs should also be taken in strict accordance with the drug instructions. Xiaohong's little cousin has a cold and fever recently, which is suitable for taking medicine.

(3) Read the instructions carefully before taking the medicine to understand the main components, indications, usage and dosage of the medicine to ensure the safety of medication.

So the answer is: (1) OTC; a； For children;

(2) A;

(3) description.