Respected user, hi I evaluated your query thoroughly.
* There are no absolute timeline for healing from chest wall contusion
* It depends on multiple factors as - size , depth of contusion - presence of
infection - comorbid conditions as diabetes
/ other related issues - local
care in form of cleanliness - general healing factors of patient - many
* In a nutshell small , minor contusions heal within days but if major +/-
with infection or other conditions may take longer period .
Hope this clears your query.
Welcome for any further assistance better with photograph of it.
Thanks for using Healthcaremagic.com & giving me an opportunity to assist
Wishing you fine recovery from the same.
Regards dear take care.