Once it expires, yes it is believed you can.
Honestly,
In my best answer I can give to you is that, is... I don't know? But, I'm pretty sure you CAN'T I don't know what answer to give to you but, you can check with the person who provides you with them. I honestly, don't know but, i hope you find the answer your looking for?...
Poor hygiene has the most effect on the immune system