I am a 46-year-old woman with a history of digestive problems. This spring I was diagnosed with a scattering of small benign cysts on my liver. I don't smoke or drink and never have. What causes these cysts and is there anything I can do to encourage them to disappear?

Cysts are abnormal swellings, filled with fluid or semi-solid material, that may occur in any organ in the body. Many different processes cause their development and it is difficult to pinpoint the exact reason, although it is likely your previous digestive problems are a factor. Dr Howard Hay, famous for his theories on food combining, found that those with acidic blood (with a pH of seven or lower) were more likely to have health problems. Alkalising the body is known to prevent further growths and may also help prevent the formation of malignant growths. An alkalising diet includes large quantities of vegetables and fruit, with protein from beans, lentils and whole grains and a reduced intake of animal products such as meat, fish, cheese and eggs. Green foods such as spirulina will also alkalise the blood - take two or three Lifetime Spirulina capsules daily. Pomegranate juice is a potent liver detoxifier and healer - if you do not like the juice, you can use capsules by Doctor's A-Z; take one or two daily. Spirulina and pomegranate capsules from Victoria Health on 0800 389 8195 (victoriahealth.com).

During the summer all the family developed athlete's foot - I think due to wearing canvas beach shoes that were constantly getting wet. We tried various creams but two of us still have very sore, deep cracks.

Athlete's foot is extremely common and this fungal infection loves sweaty trainers, humid weather and damp areas around swimming pools and showers. It is important to wash and dry feet thoroughly and wear flip-flops in public showers and changing rooms. Wear cotton socks and alternate your shoes - never wearing the same pair two days in a row, allowing them to air out. Use tea tree soap - harsh or perfumed soaps can further irritate the skin. I have been amazed by the mighty fungal and bacterial fighting properties of Grandma Vine's Antiseptic Gel. For stockists, call 0117-968 7744 (grandma-vines.co.uk).

· 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.