<s>[INST] Hello,  I have had a very severe sinus infection and will be having surgery in 2 weeks. I take sudaphed daily and have for years. I also run low potassium whenever I am ill,  (so sorry, my doctors nurse just called.)Anyway, they are going to check my magnesium levelsas well as I suffer dreadful headaches and sleeplessness.Do you have any idea how I can help myself?My potassium is 2.8 at present. [/INST] Hello Dear. Your potassium levels are a bit low. Normal levels 3.5-5.0 milliEquivalents per liter (me/L). You can eat the pulp of tender coconut daily which will increase your potassium levels. For sinus infection you can try home remedies till you go for surgery1. Humidify. Use a humidifier in rooms where you spend a lot of time. Follow the instructions for regular cleaning.2. Breathe in steam vapors. You can either run the shower and sit in the bathroom, or breathe in steam from a bowl of warm (but not too hot) water. Adding picks vapor to warm water is good. The steam vapors ease congested and swollen nasal passages.3. Use warm heat. Put a warm, wet towel on your face. It can take off some pressure.4. Try a nasal saline solution. While they don't contain medicine (saline is salt water), they can help keep your nasal passages moist.Also, your doctor might have given you antibiotics to take. Antibiotics like amoxicillin 500 mg three times a day, for one week will effectively help in sinusitis. Hope I have answered your question. Feel free to contact me if you have any more questions. I'll be glad to help you. All the besting warm regards Chat Doctor.  </s>