we see mike get it in episode 3

el asks about it and mike tries to lie about what happened, so it's written into the script

mike has it in every scene for the rest of episode 3. we see how bad it is most clearly in the 4th image above

i swear to god it immediately shrinks in episode 4. i could barely see it in mike's first scene in the basement with el. then we see it clearly again when mike is in bed; it didn't look like that a few hours ago

why is it already getting smaller?! mike fell YESTERDAY!

one last look in episode 4

then episode 5 rolls around and this goofy face is the only thing i can show you because it shrank to the size of a DOT. you simply can't see it when mike isn't making this face

A slow, knowing smile curved the girl’s lips, a smile that sent a shiver down G’s spine, both of apprehension and a strange delight. She swept her gloved hand out in a dramatic, theatrical gesture and gave a slight bow, her golden eyes never leaving G’s. “And a warm welcome to you, mein liebes Fräulein,” she purred, her voice a low, melodic alto that resonated through the empty theater. “As they say, the show simply couldn’t begin without you.” With a flourish of her scepter, she turned, her gaze still fixed on G, and after another exaggerated, graceful movement, announced, “And now, for our first act…” G blinked just as the lights went out. Everything fell silent. “This is the story of a woman who stepped in for another. One who took it upon herself to maintain the innocence of a sweet, pure little lamb.”