8 days after FUE my donor area still scabbing. What can I do as it feel dry and tight? (Photos)

You need to contact your doctor for a follow up and possible washing.  Your donor area does not look typical.

Hello,
The donor area after FUE, whether by hand or ARTAS, takes some time to heal.  Most patients heal atraumatically over a period of weeks.  As your hairs begin to grow, the donor area becomes harder to see.  Daily washes with mild soap can help keep the donor area clean.  If scabs form, mild soap and water can be helpful.  We use PRP in the donor area to facilitate healing as well.  
Best,
Anil Shah

You may start to use moisturizing creams on donor site and wash the  donor area at second day of surgery with care and massage the transplant area gently so the scabs will fall off... After two weeks of hair transplantation  it is acceptable  to wash hairs as normal /preoperative period of surgery. All scabs should be cleaned with pressured (not gentle) massage to transplant area  after 2 weeks .Dont forget that you may wash your head with normal pressure and if you need you can use a wet towel with soap for massage the scabby area, it Works very well to remove scabs .Patient may feel free to loosen any scabs on his/her head by massaging and that will not  damage the grafts after 2 weeks . 

This requires more vigorous washing which at this stage will not cause any problems and it will remove the crusts