Sis, for dry cough, effective sa little one ko yung pag-take ng spoonful of honey daily. May antibacterial properties kasi yung honey tapos napapalambot rin nya yung matitigas na phlegm. For sinus infection naman daw, okay daw yung apple cider vinegar. Ihalo mo lang yng 2 to 3 teaspoons sa hot water at ipainom mo sa kids. Check mo to para malaman mo pa yung ibang remedies for sinus infection mommy :) http://www.naturallivingideas.com/14-natural-sinus-infection-remedies/ Eto naman for dry cough :) http://everydayroots.com/cough-remedies
Sis hindi herbal pero try mo pasinghutin ng steam ng hot water na may asin. Might work.
Ampalaya po
AidaLiza Susing Macabanti