Naturopharm Classical Silica 30C 130sThe homoeopathic remedy Silica is manufactured from pure flint Silica. Silica is beneficial for sweaty feet and assists normal immune response and the skin's defences. Acute: 2 tablets per dose every 15 minutes for up to 6 doses then 3 times per day as required. Suck the tablets for 1 or 2 minutes then either dispose of tablets or chew and swallow. Chronic: 2 tablets per dose 3 times per day as required.