Thrush question!

Hello everyone! 
I'm really wanting to start my stockpile since I only have 4 weeks left on my leave. We've had thrush for over a week now, we're both on medication for it. Am I safe to freeze breast milk and give it to him at a later date? I heard maybe if you scald it first, it would be safe! 
Anyone have any experience with this? I can't find anything online about it.
Thanks in advance! 
(Just wanted to include a picture of my little man ☺️)