Ice it for 5 to 10 minutes, leave it alone, and apply a microneedle patch before it surfaces — squeezing makes it bigger. A growing pimple is usually still under the skin; flat hydrocolloid does nothing yet. Rael Microcrystal, ZitSticka Killa, and Peace Out Salicylic Acid Microneedle each deliver salicylic acid and niacinamide one to two millimeters down through dissolving cones. Wear six to eight hours, repeat over two nights. If the lesion is painful, throbbing, and over 5 mm after 48 hours, it has likely become cystic — a dermatologist's intralesional cortisone shot ($50 to $150) flattens it within 24 to 48 hours. Picking guarantees post-inflammatory hyperpigmentation that can linger for weeks.