It’s started to rain in Thailand now and I know I said it before but I will say it once more. People do not wear plastic on the head to cover the hair (well some do) but most of them cover the head so that you not get sick. You will get very sick if you get rain on you in Bangkok. The rain is toxic and you will get sick for 3 days and I mean a real ugly one as well. So its time for you to get a cap, hat or plastic bag what ever you prefer just cover your head with something.