Physical symptoms: This remedy is for people with a very low resistance to infections, such as ear infections, colds, sinusitis, sore throats, and bronchitis. They are always coming down with an infection and have poor stamina. People who require Silica are often very thin and underweight and may have brittle skin, nails, and hair. They are chilly and cannot stand drafts of cold air.
Mental and emotional symptoms: They are usually stubborn and irritable, yet very shy and sensitive to criticism.