Snorting cum isn't safe. Think of your nasal sinuses. If some stays there then after couple of days starts to rot and you can easily get nasal sinuses infection. You do not want this. ALways after such things go to doctor to do irrigation of nasal sinuses with (not warm water). We know what does warm water to cum. It is changing it's form to non liquid. I do not recomend doing this stuff even if you consider it as something what drives you more horny watching this. From medical perspective it is bad for you. And doing irrigation alone with huge pressure may cause trouble to your hearing condition and other serious stuff that may happen. You may destroy your inner parts of ear. If sperm stays then is starts to rot after couple of days and cause serious infection. It is not for you. That is for sure.