Thank you for asking your query at DoctorSpring.
It is most likely contained lymph (as you have correctly pointed out) and some inflammatory fluid at the scar site and should get resolved by itself. However, if gets infected then it will have to be drained. You should refrain from masturbating at this point of time atleast for a week more. Avoid penetrative sex also.
Daily wash the area with water; no soap to be applied. The best approach would be self resolution and you should try for that. If the swelling seems increasing in size and/or there is pain, discharge or redness you should consult your Doctor.
Hope this helps
Please feel free to ask followup questions
Patient replied :
Thanks for your response, Dr. There has never been any pain, and there is no longer redness (only within the actual borders of the scar), which I know is normal. I had been trying to massage it daily but I think that constantly messing with it has probably just made it worse, so I am leaving it entirely alone now. Is this a better course of action? Also, as it is going down during the day, I believe that means there is movement. Because of this, is it unlikely that there will be extra scarring due to lymph inflammation? Also, for the portion that never swells but is always pretty much there, is it possible that this is some kind of lymph clot, and will my body resolve it? I am only 19, so I know my body should be better about things like this than if I was older.
You are exactly spot on. No activity is the best treatment for yourself.
Do not worry about this. A rule of thumb is that any external activity like massage, rolling , stretching etc is NOT going to help. Inface these activities might worsen it. Just give rest. Body will reabsorb the fluid. About scarring/ clot it is difficult to say. Even if it there , it is safe to observe for some time.