Hay, mama, that sounds really uncomfortable! Swelling at pain sa knees after delivery can happen talaga, lalo na if you had a difficult labor or nakatulog ka sa awkward positions habang nag-recover, pero together with the rashes na sobrang kati, kailangan mo talaga i-check yan with your doctor para ma-rule out kung hindi inflammatory response or infection. A few of us moms had similar swelling pero nag-subside after a few weeks with rest and elevation, pero yung rashes with itching needs medical attention para ma-identify ang cause at ma-treat properly, baka dermatitis or something else na kailangan ng specific treatment para hindi lumala. Hugs mama, go see your OB or dermatologist soon para ma-address both concerns!