This active infection, coughing, and clearing throat can often result
in break
in small blood vessels. Usually these heal with treatment of laryngitis which involves antibiotics, anti-inflammatory, anti-allergic drugs along with maybe decongestants, warm saline gargles and throat elixirs.
Nervous system disorders, tumors of larynx, bony and other tumors compressing the larynx can all cause loss of voice.
Please consult your PCP for primary examination followed by proper referral.