For a persistent dry cough in toddlers, applying a massage oil made from lukewarm mustard oil or sesame oil infused with garlic and ajwain (carom seeds) on the chest and back can provide soothing relief. If the environment is dry, using a humidifier in the room can help ease airway irritation. Additionally, honey is a natural throat soother, and some parents find relief using specialized, kid-friendly cough sprays. Since coughing can sometimes lead to vomiting in young children, staying calm and focusing on gentle, non-medicinal remedies is often the best first step.