Had something similar 13 years ago. Everytime i drain the cyst it just reoccur again, same spot after just few days. Went to a specialist in kpj damansara and was told that it is pilonidal sinus. Had to go for surgery. They removed the chunk of the flesh and was told to let it naturally fill up and heal. It was a pain since had to clean and change dressing daily.

Yes, if you google it, the place that it occurred is the exact same spot you see from google images.

I went and see the Bariatric Surgeon. Prof Dato Dr Haron Ahmad. You can view his profile below
Surgeon

Before the surgery I simply went to do consultation (upon parent's advice) and he managed to diagnose PS was the cause and surgery's the best way to remove it.