Hi,
First of all, it's sad to know what your son had been going through lately.
Based on the history you have shared, if
bruise wasn't caused by the fall, it needs to be worked up, if its caused by trivial traumas it also should be evaluated by a clotting profile as well as blood counts to look for platelets.
If no
loss of consciousness or no focal neurological deficit is present, less likely to be an internal
injury to brain however gasping for air should be evaluated.
On hospital visit, his chest should be auscultated and
oxygen saturation may be seen to look for any oxygen-related issues. Meanwhile, OTC analgesics like
acetaminophen can be used for inflammation or pain if any post-trauma.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Saddiq Ulabidin, General & Family Physician