I have a three-octave vocal range before breakfast, two-octave after. I have cut out cereals, dairy, bananas, coffee, tea, etc, but it's still hard to shift cataarh on the cords.

You have given up most of the food allergens that can cause mucus build-up - although citrus and eggs can be a problem, too. You could have a viral or bacterial infection, a non-food allergy, or a reaction to dry air, cold, damp or chemical irritation. Is there something you're inhaling in the morning - dust or dust mites, cigarette smoke, hairspray or perfume? Is the air dry due to central heating? Check with your GP for polyps in the nose or on the vocal chords. Chronic laryngitis from vocal overuse can lead to catarrh. Some detective work is required, but in the meantime take 5ml three times a day of Catarrh Mix (£9.95 for 200ml), from herbalist Paul Hambly (01892 783027). Reduce the dose as symptoms improve.

I am a 68-year-old woman with several cysts in my liver. What could be causing them? And is there a natural remedy?

Liver cysts can simply be a benign feature, or caused by infection, but some can be due to malignancy. It is essential that the cause is investigated by your GP before any natural treatment is attempted. If an ultrasound shows that the cysts are benign and small, this is usually linked to improper fat digestion. You could, in this case, take Lifetime Advanced Milk Thistle Complex for its liver-regenerating properties, dandelion (which works the gall bladder for production of the bile needed for fat digestion) and Picrorrhizia Kurroa, a traditional ayurvedic herb with powerful liver-toning properties. Reduce fat and alcohol intake. Contact Victoria Health on 0800 3898195, victoriahealth.com.

· Emma Mitchell is a natural health therapist. Before following Emma's recommendations, you should consult your GP about any medical problems or special health conditions.

Send your questions to Wellbeing, Guardian Weekend, 119 Farringdon Road, London EC1R 3ER. Email: ask.emma@theguardian.com.