Since I don't have earphones with L-shaped 3,5 mm jack, I used slightly better and more aesthetic solution to increase the lifespan of earphones. No more medical tape.
It really works! The solution is heat-shrinking tube. I went to a few hardware and DIY stores near me and when asking for that product they looked at me like I felt from Mars and am talking some gibberish. So I ordered a bunch of them on ebay from China for less than 1 € with free shipping.
This simple but effective modification will definitely increase the lifespan of any earphones and it looks much better than medical tape, electrical tape or duct tape.