The present invention provides a flexible pouch which comprises at least one wet compartment storing a first liquid and at least one adjacent dry compartment storing at least one compressed tissue or chemical compounds, or a combination thereof. In use, the user applies a certain force to the wet compartment to break membrane seal between the wet and dry compartments to allow the liquid flowing from the wet compartment to the dry compartment to activate the compressed tissue or the chemical compounds in the dry compartment. The flexible pouch may further comprises a second wet section storing a drinking liquid which is arranged separately from the first wet section.