My acnes are back at 22 !!!

This is really weird but I thought that i had got rid of them when i was like 17 but now they came back again !!! i did multiple medical test ( hormones,disease ,liver, vitamins and minerals and ect ) and results were totally normal.

Did uterus and ovaries sonography , no cysts or anything wrong ,

I eat healthy , I drink water enough and i play sports too ! Changed all of my bed sheets , im pretty sure that i have no allergy to anything but you clearly can see freaking pimples and acnes on my chin and jaw !

Ps : i do not use skin cosmetics or foundation!

Im really sick of my skin i tried the ordinary serum for a whole course and as I stopped acnes came back

Also i tried 2% azithromycin and it made it better for a while but not permanently .

I follow skin routines and products for oily skins but its really weird to me how they appeared suddenly and just doesn’t go away since a year ago i almost tried anything !

I dont use any kind of medicine and drugs , i dont drink and im not over weight or stressed . And my periods are totally on time and scheduled .

I dont shave or wax my face The only thing is my skin’s oily .

Please help if you know any way im just freaking out !