Please don't worry. 'Prominent bronchovascular markings' is a very common, non-specific finding on chest X-rays, often indicating mild airway inflammation or congestion rather than anything serious. Since your cough has lasted two months, we need to identify the exact underlying cause, such as post-nasal drip, cough-variant asthma, or acid reflux, before starting targeted medication. For temporary relief, you can try over-the-counter cough suppressants like dextromethorphan or antihistamines if you suspect allergies. However, to properly resolve the cough, please consult a doctor who can perform a physical exam and prescribe appropriate treatment, which may include inhaled bronchodilators like albuterol if indicated.

For your sore throat and cough, warm saline gargles can provide relief. You can use generic dextromethorphan for a dry cough, or guaifenesin if you have mucus. Paracetamol can help ease throat pain. For constipation, focus on drinking plenty of water and eating fibre-rich foods. If needed, a gentle osmotic laxative like lactulose or polyethene glycol can help. Please consult a pharmacist to ensure these do not interact with any other health conditions. If your symptoms persist for more than a few days or if you experience severe pain or fever, please see a healthcare professional for a proper check-up.