#199950
Scabies can form anywhere but prefer corner or web areas.
Scabies might not appear until 3-4 weeks after these lesions.
I see the hang glider sign (the appearance of a brown triangle that corresponds to the head and the two anterior pairs of legs of the mite) or what will form the jet-plane with condensation trails (the appearance of a brown triangle in addition to the white S-shaped burrows which are filled with eggs and scybalas) are considered to be features specific to scabies.
Google these images and info.
I do not recommend a biopsy but a skin scraping that will have the best probability finding mite, eggs, and feces. However, this is also unreliable. There's an ink and mineral oil test where you can see the trails more clearly.
Best remedy is oral ivermectin 2x dose with 1 week apart based on your weight.
Good luck!