4th pico tx 8 days ago. Last 2x, tech injected lido, 1st 2 tx's were so painful. All times I have blistered terribly. Last 2 times, groin lymph nodes extremely itchy & swollen. (allergic to surgical tape too so didn't help). Sudden onset of facial acne on day 5, cheeks, forehead mainly, but all over, except chin. What could this be? Is this related, or heat rash? (Been hiking as well)...No new face creams, etc. or meds. I normally have clear skin. Some teeny whiteheads.