Good day
My knowledge on tissue salts is very limited. However I've taken the indications and uses straight from the website. Please see below
Used for
• Pustulent sores or pimples
• Bad odour and smelly feet
• Embedded foreign objects
Homoephatic Mode of Action
Silicea is a cleansing, eliminating tissue salt. It removes foul, degerative matter from the body and is the biochemic remedy for abscesses, styes, boils and pimples, bad odour, offensive perspiration and smelly feet. Silicea is also indicated for malnutrition, physical fatigue, trembling and langour.
I would suggest that you visit a homeopath or naturopath and seek guidance on what combination of tissue salts best suits your condition