Hello,
You referred to some indentation in your arm that has splotch of
redness. The following are few causes I can think of:
1) Most commonly lipoatrophy due to
steroid injections given at the upper arm intramuscularly either for allergies or any other disorders. If the injections were placed properly, the indentation would have been avoided. Such indentations also occur after giving intralesional injections for
cystic acne on the upper arm.
Treatment of this indentation is as follows:
a) Fillers
b) Fat transfer
c) Most effective is injection of 5-9 ml of 0.9% saline 7-8 times every 2-4 weeks for 3 months. This is less expensive and best.
Now I shall mention other probable causes of indentation
1) Localized morphea
2) Hypopigmented
mycosis fungoides
But your indentation will most probably be due to lipoatrophy. So just approach a surgeon and ask him to give saline injections over that indentation multiple times.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Pallavi M., Anesthesiologist