Disease

• Salmonellosis
• Scabies
• Schizophrenia
• Seasonal depression Seasonal depression, also known as seasonal affective disorder, is a type of depression that affects 2 to 3% of Canadians. Symptoms tend to appear in the fall and winter.
  
• Seborrheic dermatitis
• Seizures (epilepsy)
• Sexual dysfunction in men
• Sexual dysfunction in women
• Sexually transmitted infections
• Shingles (zona)
• Sinusitis Sinusitis is often caused by another infection such as a cold, the flu or other viral infections causing nasal congestion. 
  
• Skin cancer
• Sleep apnea Sleep apnea is characterized by temporary breathing cessations during sleep.
  
• Smoking cessation
• Snoring
• Sore nipples and breasts in breastfeeding mothers
• Sore throat How can sore throat be relieved? A few very simple measures are usually enough to relieve any discomfort. Get our tips.
  
• Sprains and strains
• Streptococcal pharyngitis and scarlet fever
• Stroke