Can Topical Anesthesia Cause Discoloration if Left on Too Long? Doctor Answers, Tips
TCA Peel: Q&A
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Can Topical Anesthesia Cause Discoloration if Left on Too Long?

I had a tca cross session 3 days ago but aside from the scabs my skin where the anesthetic cream was applied is still red. I'm worried that this will be permanent. This is my second tca session and the first time was not like this at all. The only difference is that the anesthesia was left maybe 30-45 minutes longer before the doctor started putting the acid. He recommended betnovate cream but it's causing my skin to peel which according to some should not happen when you have TCA. Any advice?

3 Doctor Answers | Asked by venezia123
+2

Can Topical Anesthesia Cause Discoloration if Left on Too Long?

As the previous expert posters relate that there is NO relationship between application time of topical anesthesia an a semi permanent discoloration to the skin area applied. Look at an impure TCA mixture as my guess. 
+2

Topical anesthesia and discoloration

Prolonged redness as a result of topical anesthetic would be unusual.  Components of the topical anesthetic may have caused some form of allergic or irritant contact dermatitis.  Probably best to stick with bland moisturizer/cleanser for 2 weeks and see whether the redness resolves.
+2

TCA

Redness & peeling are usual after TCA peel. I assume u had CROSS to the scars & a lower strength TCA to the rest of the skin. Leaving anaesthesia on for longer duration should have no detrimental effect

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