The sides can be very harsh, its not only the cough:
Shuts you down hard
progesterone related sides
shortness of breath
insomnia
night sweats
aggressiveness
Hairloss
tren cough
to name a few, its for the advanced user and it shouldnt be used on your 2nd cycle when your getting gains like you are, there is no need for it and can bring sides what can be that harsh you would stop running the compound straight away.
Masteron is nothing like Tren, its a hardener for pre-contest when your bf is in the low range,