1)
Why are the Simanim on the area of a boil or a burn different than those on healthy skin?
1.
Seforno: Because skin that is removed via a boil or a burn cannot re-grow, in which case what grew there is not real skin but a crust. 1
1
Seforno: As the Gemara states in Nidah, 54a.
2)
What are the implications of the juxtaposition of "Se'eis" to the words "bi'Mekom ha'Shechin"?
1.
Sifra: It implies that the Se'eis appeared after the Sh'chin was healed, but not if it preceeded the Sh'chin.
3)
What are the implications of "Levanah Adamdames"?
1.
Rashi: It implies a mixture of white and red.