>>14130950I caught delta back in November and partially lost my smell. but I fully recovered it by retraining it with essential oils. At first everything smelled like nothing, but then I was able to detect how "burned" something smelled and started learning how different things had different levels of that characteristic. Every day I'd spend about 20 minutes wafting the essential oils and testing myself/making notes of how they smelled more/less like each other and other different things I encountered on a daily basis and eventually (about a month later) my sense fully recovered. Now, almost 3 months later, my sense of smell is actually more sensitive than it was before, so don't despair: there's hope!
tldr; sniff different things daily and make note of how they're the same/different