Desperate to remove permanent eyebrow tattoos placed too high, tried saline tattoo (didn't help) (Photo)

I recently tried laser on the bottom tip of one and it darkened it instead of lightening it (no pic). The lady that did the saline told me that she can put a mix acid 60% PCA on them after 1st opening the skin with the cosmetic tattoo machine, then dab it on. She says she did it to herself and it did indeed removed the ink. She says it is painful but will numb me. I am extremely nervous but also very desperate! im mostly afraid of infection. I must allow it to scab... help? any info?