nasal steroids - anti-inflammatory sprays that can be used to treat a range of conditions, including hay fever, sinusitis, non-allergic rhinitis and nasal polyps.
antihistamine: a drug or other compound that inhibits the physiological effects of histamine, used especially in the treatment of allergies
corticosteroids - anti-inflammatory drugs that reduce inflammation and swelling in autoimmune diseases
immuno-suppressants - drugs that suppress the immune system to prevent rejection of transplanted organs
protease inhibitor drugs - inhibit protease, an enzyme needed for viruses to reproduce
reverse transcriptase inhibitor drugs - inhibit reverse transcriptase, which is the enzyme that viruses use to reproduce