Could I do another IPL session after one week, hence speed up the overall process? Any medical reason against this?

Each hair removal treatment only affects the hairs which are actively growing. Then you need to wait for several weeks for the hair which was in a dormant phase of the growth cycle to move into the actively growing phase. So doing more frequent treatments will not speed up the hair removal process.

The
main thing to consider before you start your treatments is to have a consult
with a reputable dermatologist/facial/plastic surgeon. My practice has been
considered by Lumenis lasers to be a Lumenis laser center of excellence and I
have been a "Luminary" (Lumenis physician teacher) for the last 10
years. Not many physicians have these recognitions. I also help develop and
teach my own Rosacea and Melasma protocols for the Lumenis IPL systems to other
physicians and technicians.Hair removal by IPL or any other laser is generally performed at 6 weeks intervals because that is the hair growth cycle. There will be no benefit of another treatment sooner that 6 weeks in theory. Home IPL treatments are low energy and therefore they produce very little if no improvement. I recommend seeking the advice and treatment of a professional hair removal clinic.Hope this helps,Dr. Gus Diaz