Self Heal

Google Lens identified this for me on my walk today.  After yesterday's physio I'm feeling like  a new woman and walked 4km without much pain - very slowly.   Self Heal - . I'm guessing it must have medicinal uses. 

The WildlIfe Trust says:- Selfheal has a long tradition of being used in herbal medicine for everything from stopping bleeding and healing wounds, to treating heart disease and sore throats.

And from Wiki :- 
Prunella vulgaris is edible .The young leaves and stems can be eaten raw in salads; the plant as a whole can be boiled and eaten as a leaf vegetable.