Putting sugar in the vagina ?!!!!

My mums friend cooked for me sugar and lemon on the stove .. and then it became sticky (like the wax hair removal) and made me 3 small balls and she told me to insert it on the 5th, 6th and 7th day and she told me it will help the sperms to swim faster or smth like that!!

But when I googled is it safe to insert sugar? The results were bacteria feeds on sugar so I might end up with an infection!

My mum told me not to worry cz lemon is an antioxidant so it won’t harm me !! But I’m terrified I think it’s crazy !

Has anyone heard/tried this??