Hello and welcome,
From your description i can suspect you have developed swelling of the mucous membrane
lining your throat. This is referred as pharyngitis
, inflammation of the mucous membrane due to trauma.
Due to inflammed and swelled mucosa you have got hoarseness of voice and difficulty in swallowing.
You can start with antibiotic azithromycin
and antihistamine twice daily for 3 days along with a pain killer.
Regular gargling of mouth with antiseptic mouthwash like betadine or chlorhexidine
gives soothing effect to the throat .
i hope that helps you, take care.