Q: Grandma, Please send me proper home remedies for dry cough and high blood pressure at above 240 /105. My doctor mentioned about pulmonary hypertension since I also suffer from difficulty in breathing.
A: Dear M, pulmonary hypertension (PH), or otherwise known as pulmonary arterial hypertension (PAH), is a condition in which the blood pressure in the lungs (specifically the pulmonary artery) rises far above normal levels. Chronic cough is a common symptom, so is shortness of breath, fatigue, and chest pain. High blood pressure, meanwhile, is also a common occurrence because of the pressure that builds up in the lungs which, in turn, increases the workload of the heart. Nevertheless, there are home remedies for pulmonary hypertension that help prevent, reduce, or control the typical symptoms of the disease; in your case, dry cough and hypertension.
HOME REMEDIES FOR PULMONARY HYPERTENSION
1. Water – Water keeps the throat moist and helps soften the phlegm stuck in your throat, making it easier to expectorate it.
2. Warm moist air – A vaporizer works by heating water until it turns into hot steam. The warm, moist air created helps soothe the throat and relieve congestion. 
3. Steam – Using a humidifier, steam from a pan, or steam from a shower helps loosen the mucus in the nasal passages and soothe a dry cough. 
4. Honey – Honey coats the throat and eases the discomfort that comes with a dry cough. Simply mix equal amounts of honey and lemon grass juice then drink to lessen coughing episodes. Active Manuka honey and propolis have been a common ingredient in dry cough home remedies because of their strong antibacterial properties. 
5. Slippery elm lozenges – Slippery elm, which is an herb that coats the throat with a thin film, soothes sore throat, prevents irritation, and stops coughing effectively by creating a gelatinous substance that contains protein and polysaccharides similar to plant gums.
6. Hard candy – For dry cough, a hard candy will do. Hard candies increase the production of saliva and cause you to swallow more, thereby suppressing cough. 
7. Camphor – Camphor is a commonly used ingredient in vaporizing rubs because of its ability to help clear congestion. Vicks vapor inhalers, for example, use camphor to open up clogged nasal passages. To reduce a dry cough, simply place a few drops of spirit of camphor in warm water and inhale the vapors.
8. Menthol – Menthol is known to relieve sore throat and dry, irritating cough. Menthol drops and lozenges that can easily relieve sore throat and dry itchy throat can be bought in pharmacies without prescription. 
9. Licorice root – This herb has long been used to alleviate a dry cough because of its ability to coat the throat with a thin film called mucilage. Licorice root lozenges and licorice root tea are both soothing to the throat. 
10. Garlic – Garlic and other alliums have been shown by many studies to help lower high blood pressure and improve cholesterol. Just like aspirin, garlic has the ability to “thin” the blood, thereby preventing blood clots.
11. Fish oil – Omega-3 fatty acids, which are fats found in fatty fish like mackerel and salmon, help reduce high blood pressure, although their role in prevention remains unclear. 
12. Calcium, Magnesium, and Potassium – Eating foods rich in these minerals has been found to help protect some people from preventing the development of hypertension.
13. Hawthorn berries – According to many studies, Hawthorn berries help lower blood pressure. What is more, they have also been found to successfully treat angina, early stage CHF, and cardiac arrhythmia in some patients.