1 / 9A viral message widely shared across WhatsApp and Twitter suggests that inhaling the vapour of camphor, clove, ajwain and eucalyptus oil can increase blood oxygen level and even relieve respiratory distress. Alt News Science found that there is no scientific basis to support this claim. Instead, sniffing the mixture can cause camphor poisoning, which in some cases is life-threatening.2 / 9In this viral post it claim that Camphor, clove, Ajwain and Eucalyptus oil can increase the blood oxygen level. Camphor, clove and Ajwain can relieve respiratory distress in Covid-19 patients3 / 9Camphor is a flammable white crystalline substance that has a strong aromatic odour. It is sometimes rubbed on the skin to reduce pain and itching. It is also used in topical nasal decongestant gels like Vicks VapoRub in small quantities (4-5%) but the evidence on its efficacy is mixed. Some older studies have found that camphor and eucalyptus have no effect on nasal decongestion.4 / 9Nevertheless, blood oxygen saturation decreases in severe Covid-19 infections because of the lungs and lower respiratory tract damage and has little to do with nasal blockage. Similarly, another research suggests that relieving nasal obstruction doesn’t improve depressed oxygen saturation.5 / 9As per the American Association of Poison Control Center’s report, in the year 2018, there were around 9,500 cases of camphor poisoning in the USA, 10 of which were life-threatening and caused significant disability. FDA advises against doses of 11% or more C=camphor as it can cause toxicity and result in severe seizures.6 / 9As per CDC’s guidelines, inhalation of camphor vapours can lead to nose, throat and eye irritation. It can cause seizures, mental confusion, stomach ache and in higher concentration, it can also lead to death in some cases. There are several reported cases in India of poisoning caused by camphor vapour inhalation.7 / 9Carom seeds (Ajwain) and Eucalyptus oil both substances, there is no research or evidence to suggest that they increase blood oxygen or relieve respiratory distress.8 / 9Apart from this, the Ministry of Health has not given such guidelines regarding these measures.9 / 9Therefore, a doctor should be consulted before taking any treatment for a serious condition of corona. (Image Credit- Getty Images)