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Can a Person Become Hypersensitive to Botox?
I have not seen acquired Botox sensitivity described in the literature. You should discuss these issues with your injector, or consider speaking to a board-certified dermatologist or plastic surgeon with experience in injecting.
Clinical Context
What feels like increased sensitivity to Botox is usually something else. Some people develop antibodies that make injections less effective over time, not more. Bruising, swelling, or tightness can also feel more noticeable simply because you're paying closer attention after prior treatments. A true allergic reaction to Botox is rare and would cause hives or swelling, not stronger muscle effects. If you notice an unusual reaction, tell your injector so they can review your technique and treatment history.
