I am a 38-year-old woman suffering from sarcoidosis. I have been taking steroids since last August. Do you have any suggestions for coping with the fatigue and swelling, and the side effects of the steroids, namely mood swings and weight gain?

In Aloe Vera, Nature's Silent Healer, by Alasdair Barcroft and Dr Audun Myskja (fit4forever.com), there is a case study of a woman with chronic sarcoidosis who found that taking potent aloe vera (4-6oz a day) dramatically improved her symptoms. She gradually cut back on steroid intake, lost weight and had more energy. Steroids cause the body to become bloated because it retains fluids and sodium - so avoid salt and salty foods. I suggest you supplement nutrients that steroids steal such as protein, calcium, magnesium and potassium, fish/flax seed oils, vitamins C, E and betacarotene.

I am in my early 30s. I work hard and play hard, but when I need to sleep I often find I cannot. Is there anything natural that can help me?

Numerous studies have found the herb valerian to be an effective sleep aid. It works better when combined with other sedating herbs such as camomile and passionflower. A deficiency of the calcium, magnesium or vitamin B6 can cause sleep problems. Take 500mg calcium, 250mg magnesium (with food) and 50mg B6 with 500mg nicotinamide (niacin) 45 minutes before retiring with sedating herb tea or tablets. Insomnia may be due to too much stress and stimulants so reduce caffeine and nicotine, and find ways to wind down. Learn To Sleep Well, by Chris Idzikowski (01962 841411), is a practical guide to overcoming sleep problems.

· 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.