Cold and cough symptoms that continue for more than 10 days despite taking medicines such as Sinarest syrup and Azithral syrup may need further medical evaluation because the cause may not be a simple viral cold alone. Persistent symptoms can sometimes occur due to sinus infection, allergy, throat infection, bronchitis, asthma-related irritation, or a chest infection. Azithral is an antibiotic, but antibiotics do not help in all types of cough and cold, especially if the illness is viral or allergy-related. Since you have already been taking treatment for several days without significant relief, it would be better to consult a doctor again rather than continuing medicines on your own. The doctor may need to examine your throat and chest, check your breathing, and decide whether additional tests or a different treatment plan are needed. In the meantime, drink plenty of warm fluids, take steam inhalation, avoid cold drinks and dust exposure, and get adequate rest. Warm salt-water gargles may also help if throat irritation is present. If you develop a high fever, breathing difficulty, wheezing, chest pain, thick mucus, severe weakness, or worsening cough, seek medical attention promptly. Completing prescribed medicines properly and avoiding unnecessary self-medication are important because repeated use of antibiotics without proper indication can sometimes lead to reduced effectiveness and side effects. With proper evaluation and treatment, most persistent cough and cold conditions can be managed effectively.