I'm sorry to hear your dry cough has persisted despite using Tusq-DX DT Tablet. Since this medication hasn't helped, it's important to consult a chest physician or pulmonologist who can evaluate your symptoms more thoroughly and suggest an appropriate alternative treatment.

In the meantime, you can try to keep yourself well-hydrated, avoid irritants like smoke or strong fragrances, and use a humidifier to soothe your throat. If you develop any worsening symptoms such as difficulty breathing, high fever, or chest pain, seek urgent medical care immediately.

Please see a specialist soon to get a proper diagnosis and tailored treatment.To narrow down potential causes, we will need some more information.Please tell me your age and gender.