During this new pandemic period, my skin has deteriorated from constantly wearing a mask. I tried a clay mask that cleanses comedones, but my sister reacted strongly, saying, “If you try everything, your skin will be ruined.” However, I think it has improved a bit; could it be psychological? Is frequent use of such products really harmful? What do you recommend?
Comedone cleansing masks generally dry out the skin. If you’re using them more than once a week, it could be a problem. But if you say it’s gotten better, continue for a while longer, just don’t forget to add moisturizer to your skin. My skin improved that way.
You say my skin has improved, right? For God’s sake, are you also saying it’s psychological? A clay mask already hardens the skin, and of course it will irritate it if you keep experimenting. I think you should take a moment and question what you’re doing 
You don’t have to see a dermatologist to solve acne caused by masks, but you should choose the right products. Clay masks open up pores, but if used too often, they can damage the skin barrier. Use a moisturizer, and if you support it with a gentle salicylic acid gel, you’ll see better results.
I was actually doing it twice a week, but I think my sister said that’s too much. I’m applying moisturizer, but it doesn’t seem to be enough; my face feels slightly tight again. Maybe I should find something more intense.
See, your sister was right again. We already said it could come too often, why are you insisting? If you’re saying your moisturizer isn’t enough, then get something suitable for your needs, assuming you’ve stopped with the trial and error, of course.