Hi D..
I just had a basal cell carcinoma removed. In fact, I still have the staples from the excision.
I see a dermatologist every 6 months, and just about every time, they remove some suspicious mole or something for biopsy, and over the past 4 years, I've had 6 moles that were progressing toward melanoma that had to be excised, and one basal cell carcinoma excised. The process is the same for both.
My dermatologist numbs the area, and cuts out a football shaped patch of skin/tissue, then closes the area with staples or sutures. It isn't painful other than the pinch/burning of the shots to numb the area, and those don't bother me. And of all the excisions I've had, they've always come back clean after the excision, meaning the surgery removed all the abnormal cells.
It is scary. I remember when I got my first biopsy results back that said that I had a 'pre-cancerous lesion,' and I thought for sure I was dead. But after a lot of reading, and having gone through this now a number of times, I am somewhat desensitized to the process. Don't get me wrong, it's always a little unnerving to realize that I am definitely high risk for developing skin cancer, but I feel good about following up every 6 months to stay on top of things.
And yes, as Theresa N. said, I recently posted a similar question to yours, as this is the first time I've dealt with basal cell carcinoma. Mine have always been varying degrees of dysplasia. But as I said, the process for treating them is the same, as both are contained in the skin cells in the area of the lesion. So the excision removes all those affected cells, and no further treatment is needed.
Try to calm down. If the results do come back as basal cell, it is not a big deal to remove it, and once it's removed, it's gone.
No experience with squamous cell, so can't speak to that, and hope I never have to.
Best wishes.