To use cold tea bags as a compress, soak a tea bag in clean water and then place in the refrigerator for 30 minutes. Then, place the tea bags on your eyes. Leave for 10 minutes or so twice daily before removing and rinsing the area with warm water. Source.
September to October is the rainy season in Langkawi and this is the period which most tourists like to avoid. But the fact is even during the rainy season, it rains only for about 2 hours a day but usually in the late afternoon and at night.
Rawalpindi's weather has historically been known to change rather quickly due to its proximity to Himalayas and the Pir Panjal Range. These mountains not only influence the weather of the city, but also provide great recreation during the hot months.