Diagnosed with costochondritis week ago under collarbone pain subsided but area is still a bit swollen get sharp pain near chest when i twist normal?

Costochondritis: Typically Costochondritis is a common malady which .usually lasts 3-4 weeks and can resolve with rest, (avoid actitivities which increase pain)use of anaprox (naproxen) 550mg 2x a day. Many times the cause of its onset is hard to determine but can be secondary to minor repetitive trauma, or post upper respiratory infection (viral or bacterial)