First of all, according to the subway security regulations, when carrying cosmetic lotion, you need to put the items in a special container. This container should be sealed and its capacity should not be too large, so as not to affect the travel of other passengers.
Secondly, try to avoid using water emulsion on the subway, because once you accidentally roll over, it will have a certain impact on other passengers and subway cars.
If there are some special circumstances, such as babies need to drink milk powder or some patients with chronic diseases need to take medicine or take medicine, the subway can tolerate it, but other passengers need to be respected. It is best to take the subway when it is not crowded, or explain and communicate with the subway staff in advance to ensure that it will not cause inconvenience to other passengers.
In a word, it is ok to take the subway with water emulsion, but we should be careful not to affect the travel of other passengers and ensure safety and hygiene. It is convenient to travel by water and milk, but we should also pay attention to respect other passengers and maintain a good travel environment. Besides the subway, you can take water emulsion, in fact, you can take water emulsion in many public places, such as parks, shopping malls, railway stations and so on. But each place also has its own rules and requirements, which need to be understood and observed in advance. In any public place, we should respect the rights and interests of others and avoid inconvenience and influence.