I used Haloderm, a mole removal cream, and the mole fell off but left a red circle where it was. How can I get rid of it? (Photo

see link to emeragecosmetics.com where we do free skincare consults daily, however you need healing creams now.  and the mole may come back as It appears likely wasnt removed at the base.
Burns need a combination of:
1) healing lasers and light such as aerolase or laser genesis and LED therapy with light stim
2) topical growth factors, stem cells, antioxidants
3) oxygen facials
4) platelet rich plasma and A cell topically
5) sun protection
6) vascular lasers for redness such as venus versa IPL, excel V KTP, and pulsed dye laser/VBeam
After 6-12 weeks you can treat for hyperpigmentation with cosmelan peels, hydroquinone, retinol or non ablative lasers like clear and brilliant or radiofrequency like venus viva.
Please see a laser, scarring and burn expert.

Appears to be a significant chemical burn -- that may be very challenging to treat. I suggest seeing a Dermatologist that specializes in burn care/scars.Its unlikely many others will comment on your post.
You could look at my website for photos of my results of facial mole removals -- all unretouched images I might add.
Damon B. Chandler, MD
Harvard-Penn Trained Oculofacial Plastic Surgeon