4ALLFAMILY Voyager Insulin Cooler with Auto Shut-Off – Insulin Cooler Travel Case TSA Approved for 30H – Blue USB Powered Medication Travel Case with Ice Pack for Temperature-Sensitive Meds

They're pricey, but there are some portable insulin coolers with temperature control (which look like thermoses) that provide days of refrigeration on the go and indefinite refrigeration when plugged in. Something like that, maybe you could take with you when you leave and keep discretely plugged in while you're at home? https://www.amazon.com/4ALLFAMILY-Voyager-AUTO-Insulin-Approved/dp/B08J6WQZ2P?th=1 (just an example) (Also, I'm sorry you're navigating this situation. It sounds very stressful.)