Dr Deeepak Acharya from Ahmedabad is suggesting medicinal use of Eucalyptus oil. Leaves of Eucalyptus are long and pointed and you can find knot on the surface which are oily. Old oil will be more effective according to tribals of MP and South Gujarat. Please massage at place of pain or swelling. It will be beneficial in chronic cough and colds. Patients need to sprinkle the oil on cloth and sniff. Mix 10 gms oil with camphor-2 grams and kerosene and massage at the place of joint pain, that may help. Deepak@9824050784