Sinus can get infected after a cold which results with headaches, it especially dangerous when they get inflamed and swollen and followed with temperature.
If you are affected with such a condition, stay at home for several days applying the proposed method for treatment.
Apply on the both sides of the nose hot hard boiled eggs two times daily.
Several times a day inhale a little salt water or chamomile tea. Together with this consume raspberries, currant and lime tea.
When you go out always remember to keep your forehead and nose from cold.