Chamomile and lime are against flu and cold.

If somebody have been sicked I cooking as remedy of flowers chamomile, lime, bark willow, as two tbl.sp. ads in 0.5 l. of hot water, infuse hour, and drink hot a few times/day.
And chamomile is sudorific herb, anti septic,spasmolytic, lime is febrifuge, in willow bark as glycoside salicin is analgesic, febrifuge, and care use willow remedies in stomach damage and small bowel.