Take hot water at night which will help you to relive constipation, relive congestion, moisten the nose and also will helps in breathing. Drink tea made up with one teaspoon of ginger. Break-up congestion with a spicy food that contains chili, pepper, mustard etc. It makes your eyes water, also makes your nose run, in short it clears your air passage. Take hot fomentation with water added with Eucalyptus oil it relives stuffy head and nose.
Psychological stress is likely to develop cold.
Whether it has an actual impact on cold or not, still, its management on a daily basis could be one of the preventives. Local unction, sudation, gargling, application of paste over forehead etc. is advised in ayurved. Apply paste of mustard, vacha on forehead. Use decoction of clove, mustard yashtimadhu, vala, raktachandan, pippali, saindhav etc. for gargling. Eat light, sour, salty, unctuous, hot and dry food substances in your diet.