Itch or sneezing	Discharge	Blockage	Impaired smell
Topical  corticosteroids	+++	+++	++	+
Oral  antihistamines	+++	++	+/−	−
Sodium  cromoglycate*	+	+	+/−	−
Ipratropium  bromide	−	+++	−	−
Topical  decongestants	−	−	+++	−
Oral  corticosteroids	+++	+++	+++	++