The above photo indicates the injection location for both calf muscle heads.
Inject into the edges of each calf muscle head, in the 3 locations for each muscle head as indicated in the above photo, daily.
25gauge to 30gauge half inch (13mm) to 1 inch (25mm) long needles are adequate.
To learn how to use SEOs (Synthol) properly read:
Site Enhancing Oils (synthol) – a how to guide