Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern..
As per your complain as you pulled the had scab/skin which was formed over the cut finger, it has led to inflammation causing sever pain and swelling.
There seems to be infection at the site of
injury leading to exaggeration of symptoms..
First of all I would like to advise you to take a higher painkiller like
Tramadol for reducing pain..
You can also get injectable antibiotic, steroid and painkiller from a physician for a faster relief..
You can apply a numbing gel over the swollen finger for localized relief from pain..
You can apply steroid ointment and antibiotic ointment over the swollen area..
Oral intake of antibiotics,
steroids and painkiller will also be advised to you..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.