Thanks for writing your query.
After reading your post, it seems that you might be having cellulitis
in you forearm resulting in pain and swelling.
You should consult your treating doctor for further clinical examination.
You may need antibiotics in addition to anti-inflammatory medicines like Ibuprofen
twice daily after meals along with serratiopeptidase
and an antacid like Omeprazole
40 mg once a day.
Also get your blood investigated for Complete Blood Count(CBC).
I hope this is helpful to you.