Stretch marks stop hit the gym ??

past 1 month I noticed that I have red long line across my biceps that connected to my shoulder chest (near the armpit) u bought a cream agains Stretch marks and stopped to hit the gym i even ordered multiminerals to "fix" my Streatchs but I didn't get the multiminerals yet so I need your advise what to do? stop train? or just ignore them, train and they will fix by the time? edit:I increased mass fast not lost fast