I had laser hair removal yesterday on my upper lip, immediately after treatment it starting burning. I have dark spots. (Photo)

The heat from the laser can cause a burn and hyperpigmentation.  I would let the clinic know so they can adjust the settings on the laser for your next treatment.  Continue using the aloe and it should go away after some time.  Make sure to use SPF every day.

It appears you had a reaction to the laser, possibly a burn. Settings may have been too high. Use the aloe vera to heal the burns, even a topical burn cream with antibiotic would work. The dark spots will heal over time. Inform your provider of the results so settings can be monitored.

Thank you for your question. It is possible that the settings were not adjusted perfectly for your skin type or that you were out in the sun, or overheated post treatment. My recommendation is keep putting the aloe vera on as recommended. If you get any scabbing use Aquaphor until the scabbing and raw areas have subsided. Speak to your provider about options for hydroquinone if the pigment doesn't start to fade. Make sure they do a test spot before resuming treatments. Stay out of the sun as this could cause permanent damage.Best Wishes,Pablo Prichard