Hello and welcome to HCM,
The history of development of
white spots on face after applying garlic paste is not suggestive of burns.
White spots may be due to reaction of skin to garlic paste.
Such spots usually clear away slowly over a period of time.
However, certain treatments are available which will sped-en up the process of shedding of superficial affected skin.
However, treatments for clearing of spots and
scars are also slow and may take time.
You can wait for the medication to act.
Now-a-days there are other cosmetic treatments like
laser available to clear away spots and scars.
I suggest you to
consult a dermatologist with experience on cosmetics for more information regarding newer modalities.
Thanks and take care
Dr Shailja Puri