Excessive sweating occurs in about 16% of patients with advanced cancer. It is sometimes a symptom of the cancer, but also can be a side effect of medications e.g. hormonal treatments for breast and prostate cancer. It occurs more commonly at night and may necessitate changes of clothes or bedding.

Management

• Treat any underlying cause, including infection (if appropriate)
• Reduce room temperature, remove excessive bedding, increase ventilation, use a fan
• Clothing is important: synthetic materials used as "wicking" fabrics commonly in sport can be bought for a low cost from high street shops. Cotton clothes and bedclothes get cold when wet and can wake people up at night.
• Maintain fluid intake to avoid dehydration
• Review medication and prescribe an alternative if possible

Medication

Sweating with pyrexia:

• Paracetamol
• NSAID e.g. Ibuprofen

Sweating without pyrexia (tumour associated) or due to hormone insufficiency – seek specialist advice.