Garlic, Ginger are strengthening the respiratory tubes and lungs by doing regular breathing exercises.
India, Sri lanka and Malaysia are using Siddha, Ayurveda medicines for protecting the COVID 19.
There are many ayurvedic medicines but they have been underestimated
Resveratrol found in peanut skin inhibits the replication of severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) in cultured Vero cells. Resveratrol (3,4,5‐trihydroxy‐trans‐stilbene, RES) is a phenolic compound produced by various members of spermatophytes such as grapes, mulberry, and peanuts. It displays potential effects to suppress replication of several viruses including dengue virus (DENV), Zika virus (ZIKV), as well as influenza virus. Resveratrol significantly inhibited the replication of SARS‐CoV‐2 with an EC50 (half‐maximal effective concentration) of 4.48 μM. This suggests that resveratrol has a blocking capacity to the viral entry into cells. These novel data support the potential utility of resveratrol on SARS‐CoV‐2 infection. https://onlinelibrary.wiley.com/doi/10.1002/ptr.6916
Tea Polyphenols epigallocatechin-3-gallate (EGCG) and Theaflavin Inhibit the Activity of SARS-CoV-2 3CL-Protease In Vitro. EGCG and theaflavin, the main active ingredients of green tea and black tea, respectively, are potentially effective to inhibit SARS-CoV-2 activity. Coronaviruses require the 3CL-protease for the cleavage of its polyprotein to make individual proteins functional. EGCG and theaflavin showed inhibitory activity against the SARS-CoV-2 3CL-protease in a dose-dependent manner, and the half inhibitory concentration (IC50) was 7.58 μg/ml for EGCG and 8.44 μg/ml for theaflavin. These results suggest that upon further study, EGCG and theaflavin can be potentially useful to treat COVID-19. https://www.hindawi.com/journals/ecam/2020/5630838/
Quercetin is reported to be effective on treatment and prophylaxis of other SARS like coronavirus infections, as a strong antioxidant and scavenger flavonoid without any adverse events. Upon this data, the investigators hypothesize that quercetin can be effective on both prophylaxis and treatment of COVID-19 cases. https://clinicaltrials.gov/ct2/show/NCT04377789
A combination of blackseed or it's oil, garlic extract, ginger extract, honey, lemon, and Curcuma longa extract has been reported to be effective in helping COVID-19 patients quickly recover at home
COVID-19 Pandemic: A Case for Phytomedicines
https://journals.sagepub.com/doi/full/10.1177/1934578X20945086
There is currently no evidence for any 'alternative' therapies for COVID-19.
Please see the following RG links.
Article The use of medicinal plants to prevent COVID-19 in Nepal
Article Plant-based drugs and vaccines for COVID-19
Please also go through the following RG links.
Article Licorice: A Potential Herb in Overcoming SARS-CoV-2 Infections
Article Glycyrrhizin Effectively Inhibits SARS-CoV-2 Replication by ...
Article The potential of glycyrrhizin and licorice extract in combat...
Article Glycyrrhizin: An alternative drug for the treatment of COVID...
Article Glycyrrhizin as a Potential Treatment for the Novel Coronavi...
Journal of Evidence-Based Integrative Medicine 26(2):2515690X2199666, 2021
Dear Dr Ghulam Mujtaba Shah . See the following useful link: https://www.frontiersin.org/articles/10.3389/fphar.2021.671498/full
Also, A novel antiviral drug called thapsigargin (TG) blocked COVID-19 infection in cells, including all new variants, in a pre-clinical study. See the following useful link:
https://www.drugtargetreview.com/news/99672/plant-derived-antiviral-drug-could-combat-delta-variant/#:~:text=A%20novel%20antiviral%20drug%20called,in%20a%20pre%2Dclinical%20study.
Kindly check also the following useful RG link: https://www.nottingham.ac.uk/news/plant-derived-antiviral-drug-is-effective-in-blocking-delta-variant
Also check please the following good RG link : Article Plant-based vaccines and antibodies to combat COVID-19: Curr...
Please, see the following helpful link:
Article The use of medicinal plants to prevent COVID-19 in Nepal