allergy medication

Guys..
i need your help can you please tell me How long between allergy medication can I give a child cold medication?
waiting for your replies

The first thing that comes to mind is, what are you treating? Cold and allergy symptoms can overlap and appear the same. What is the child's history? What were the symptoms that were treated first? How long have the symptoms been present? How does the child look right now? Is there a fever? When was the last dose of what medication? What's the plan for the child's day? There is no simple answer.