i would just count out the tren. it will cause it to flare up and get worse.
once the lumps are hard, it is almost impossible to get rid of them. you have maybe a 2% chance without surgery. you can get them to not bother you, and get the lump small enough that it isn't noticable.
but as easy is saying, there is always a chance of side effects with any steroid. if it is non aromatizable, there is still a chance you get gyno. if it wont convert into dht, there is still a chance of you going bald, getting acne, and w/e other sides come with an androgen.
people need to get it out of their head a certain type of steroid will not cause this, or can be used specifically for a purpose. that is wrong.
the steroid may be less prone to certain sides, but they are still a possibility.
some people letro works, some people nolva works, others can run a stacked cycle of all non aromatizable steroids, and then, others have to get surgery.
the truth is you are going to have to research various methods people have used to get rid of, prevent gyno, and how to run a cycle with the least chance of flaring up the gyno. id suggest getting rid of the tren.
good luck finding what works for you.