Nothing to worry about, you should only worry if you see blood. That looks like a scab that came off. In terms of washing, I took a bowl of luke warm water with the shampoo Dr. Diep gave me, but even if you run out just use baby shampoo. I mixed the shampoo in the bowl of water and slowly poured it over my head dabbing it gently with a sponge. I did this for about 5-10 minutes. Past 7 days you can massage the area a bit harder to remove the scabs and crusts. By that time the grafts are definitely secure.
From a very satisfied patient of Dr. Diep myself, I have every confidence this will turn out great for you. It's difficult to play the waiting game, I know, but you will be rewarded.
Yes please keep us updated on your progress.
I think if money were no object there are about 8 doctors in the US I would pick from who are all at the top of the game skill wise. Some variation in their style of work. I used Nader in Mexico. I have never seen a bad result from him, but he does have some results that aren't hoe runs, though most of the ho-hum results are simply not enough grafts being done for the large area that is more a result patients on a budget and a conservative approach.. In short, I think his graft survival rate is good as other good surgeons. Though he has nowhere near the number of reviews and information is power. So when you have a Dr. here that has hundreds of reviews vs one that has about 10..logically you have more assurance of their abilities over a range of patients and time. But with that presence comes a premium price. I think Dr. N is just under $2 a graft. I am only 5 months in and happy so far, but it's early yet. He is worth looking into if you are on a budget. There is another Dr. in Greenville, SC who I think get's around $5 a graft and has respectable results. I think as long as you go to someone who ONLY does HT and does it every day, you are going to get decent results. if they offer anything except HT in their practice...my advice is run away as fast as you can.