The level of discomfort really varies depending on the type and strength of treatment you're getting. For chemical peels specifically, some burning and tingling during application is completely normal because the acids are exfoliating your skin at a chemical level. Light peels might cause mild tingling, while medium-depth peels can definitely burn quite a bit during application. The redness and sensitivity you experienced for several days afterward is also typical for chemical peels, especially if it was your first one or a medium-strength peel. That said, the experience should have been explained to you beforehand so you knew what to expect. A good aesthetician will check in with you during treatment to make sure the discomfort is manageable and will give you detailed aftercare instructions to minimize irritation and promote healing. If the pain was truly unbearable rather than just uncomfortable, or if you experienced blistering, excessive swelling, or skin damage, that would be concerning. For future treatments, definitely communicate with your provider about your comfort level and ask them to explain exactly what sensations you should expect. They might be able to adjust the strength or offer numbing options for more intense treatments. It's also worth starting with gentler treatments when you're new to professional skincare and working your way up as your skin builds tolerance.