When a girl is in her physical period, a guy should never be indifferent, and he should not just say that he will drink more hot water. While this is really a very good method, it is definitely not a good way to comfort.
If conditions permit, you can make him a cup of brown sugar ginger tea, these are sold on the supermarket, or you can make your own. Methods and tutorials are also plentiful and easy to find online, and for girls, they don't care what you say, they care more about what you do. Even if you serve him a cup of hot water at this time, he will be very happy.
In the meal time must focus on her in the physiological period has a lot of taboos, can not eat too spicy food. Also can not eat too cold food, when the two of you eat, must try to avoid these.
If you can, try to carry a thermos with you, this is a time when girls can't drink cold water or eat cold food, so you can use a thermos to bring him some brown sugar water.
Know in advance what brand of tampons your girlfriend uses, and you can prepare one or two in her bag. If you don't mind, you can also prepare one or two in your own bag, but it's best not to let others see, easy to be treated as a pervert.
Whether it is winter or summer ah, girlfriend physiological period need to go out with him to prepare some warm baby paste, used to keep warm in time. There are some people's nerves are more sensitive, but the pain of physiological period is also very intolerable, warm baby can relieve the pain to a certain extent, if you are at home, you can use hand warmers, especially for those girls with cold hands and feet.