It's not even a theory, it's only a hypothesis at this stage! Bloody broscientists.
Conjecture is more like it, unless one believes Elvis "sightings" are sufficient evidence to formulate a hypothesis he LIVES!
Evidence there is nnone, except anatomical and even its misconstrued and misapplied
Heck the ONLY evidence the OP has presented that is factually based is the anatomic presence of facial lymphatics!
However since the facial lypmphatics follow a mandibular and carotid course any lymphatic swelling would be expected to occur in those regions first and not the cheeks.
Moreover the OP fails to mention WHY "Tren swelling" is limited to the face and spares all other body regions
Does Tren suppress immunity, NO evidence of such an effect. In fact immune suppression would DECREASE lymphocyte activity within the lymphatic tree NOT INCREASE IT.
He obviously used a child's pic to bolster some fictitious assertion. It's clear the both of the PICS used were NOT due to Tren or this info would have been included.
Why didn't the OP include a pre and intra-cycle Tren PIC that would enable a reader to compare and contrast this "facial swelling"
Finally in spite of this swelling the OP continues to use what he believes is the offending agent, Tren.
Now I don't know what some call that, but I call it damn STUPID!
This entire notion of Tren causing focal facial swelling is BUNK pure and simple!