16 minutes ago, Acnefighterrr said:

Hey, i wanted to do a TCA-cross this weekend , but i am also doing a general health check next next week in the hospital (doctor said no eating in 10 hours). I am worrying TCA might effect the result of the health check, should be i be concerned? Couldnt find any information about this.

The simple answer is no, unless you come down with some major skin infection that requires hospitalization. The probability of that ever happening is nearly zero if you get it done by a professional.

Comprehensive metabolic panel (aka "blood test") consists of glucose, electrolyte, kidney and liver functions. No connection to the skin.