Common Application site burning, Application site pain, Application site itching.

Expert advice for Azac Soap
Do not use azelaic acid for more than 12 months at any time.Do not take if you are allergic to azelaic acid or any of its ingredients.
Before applying the cream/gel, clean the skin thoroughly with plain water and pat it dry.
Azelaic acid is for external use on the skin only. Do not allow azelaic acid to come in contact with your eyes, mouth or other inner skin layer (mucous membranes). If it does, wash immediately with cool water.
Inform your doctor if you have asthma before using azelaic acid.
Tell your doctor if you are or planning to become pregnant or are breastfeeding.

Q. Is azelaic acid an AHA/ retinoid/ antibiotic/ DHT blocker/ steroid?
Azelaic acid is not an AHA/retinoid/antibiotic/steroid. Azelaic acid may be an inhibitor of 5-alpha reductase which in turn decreases the levels of DHT (dihydrotestosterone)

Q. Does azelaic acid topical work for wrinkles/ melasma/hair loss/redness/to get lighter skin?
Azelaic acid topical mainly used to treat pimples, sometimes for melasma and not recommended for other skin conditions

Q. Does azelaic acid topical exfoliate?
There is not much evidence found for azelaic acid exfoliating dead skin

Q. Does azelaic acid bleach clothes?
No, azelaic acid does not bleach clothes.