subincise
/ˌsʌbɪnˈsaɪz/Definitions
1. verb
to cut under the surface, especially to cut a skin or other covering so as to relieve tension or pain
“The surgeon had to subincise the patient’s skin to release the pressure.”
2. noun
a cut under the surface, especially one made to relieve tension or pain
“The subincision was necessary to prevent further complications.”