Thanks for your query.
The symptoms you have described are more likely to be symptoms of muscles strain over rib cage
To get relief from the pain(itchy sensation) and for quick healing:
1. Do hot fomatation at the site.
2. Apply local anti-inflammatory gel 2-3 times a day.
3. Take anti-inflammatory drugs like Ibuprofen
to reduce pain and local swelling or inflammation.
4. Do not lift weight or try to do exercise that involve painful muscles. Give proper time for the injury
I do hope that you have found something helpful and I will be glad to answer any further query.