FUE Hair Transplant - How to heal the stabbing pain in the donor area? (Photos)

We see this occasionally, and it will often respond to a course of a non-steroidal anti-inflammatory agent such as ibuprofen taken around the clock for two weeks.  However, it is unusual, and though I don't see anything alarming on the photos you provide I would strongly suggest you visit your surgeon for assessment and treatment.

Pain after FUE is not uncommon.  Your symptoms are likely related to nerve irritation and it will continue to improve likely over the next two weeks and not be permanent.  I would not massage the donor site, since this will only irritate it.  Taking a warm shower and allowing the water to hit the donor site can often give some pain relief by relaxing the underlying scalp muscles which can also get irritated.
From a medical standpoint, I can only say what I have have offered my patients - Neurontin (Gabapentin) for one week can reduce nerve irritation, Medrol dose pack to relieve inflammation and even acupuncture which I am certified to perform.  Narcotics are not effective and I typically do not write them for this issue.