I get cough and cold every 4 to 5th month how should i get rid of it that i will never have it in my life any way?

Not sure: It's common for people to get a few colds a year. If you need antibiotics, inhalers, steroids or other interventions it would be a good idea to make sure you are healthy and just need to maybe make a few lifestyle adjustments. Smoking, not eating a balanced diet or getting enough sleep, having excess stress, not washing your hands enough, or having untreated allergies can increase illness risk.