Women should be careful to wipe their private parts with tissue paper to avoid allergy. Although both tissue paper and toilet paper are household paper, it's better to use them separately and not mix them up, especially for women.
Comparatively speaking, the paper requirements of tissue paper are higher, which clearly stipulates that recycled waste paper shall not be used, so the price is also higher, but there is no clear provision for additives. In order to make facial tissue feel good and not easy to break in water, wet strength agent, softener, fluorescent whitening agent, activator, paper powder, fragrance agent and other chemicals are added, but there are no such additives in toilet paper. It's OK to wipe your face and hands with facial tissue, but if it's used as toilet paper to wipe women's private parts, it's likely to cause allergies.
Therefore, it is suggested that different kinds of household paper should be used separately, napkin should be used to wipe mouth, facial tissue should be used to wipe face and hands, toilet paper should be used in private parts, etc.