I have torn a ligament in my groin – half my leg is dark red/black with bruising – and at night my leg throbs all over. I rub in arnica and witch hazel regularly. I am keen to avoid strong painkillers.

Arnica applied topically can soothe and heal bruises, but an injury as deep seated as this would need a remedy taken internally, too. Helios's Combination Injury includes arnica, ruta (for injury to ligaments), rhus tox (for sprains and strains), hypericum (for injury to nerves) and calendula (for healing). Ask for 30C potency to be made up (£6.25 for 8g including p&p) and take one tablet three times daily for three to four days, then twice daily for a week and once a day for a further week. Stop when things improve. Treatment always work best with guidance from a homeopath. (Call Helios on 01892 537254.)

For 12 years I've suffered from a dust mite allergy. I have also become intolerant to a growing number of foods. What can I do?

Dust mites live in bedding, mattresses and carpets. Their droppings can trigger allergic reactions, causing respiratory problems, asthma and rhinitis. Use dust-mite-proof covers for all bedding; swap carpets and curtains for smooth floors and blinds, vacuum daily and use air purifiers. A NasalAir Guard will fit into the nostrils to filter out airborne pollutants. Strengthen your body holistically so you can cope again with everyday substances and foods. A naturopath or nutritionist will guide you in this. There may be additional factors causing sleep deprivation. First stop for information, advice and products, The Healthy House (01453 752216).

· 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