Step 1: Extract the juice of garlic and onion by blending or grating them and then strain this mixture via a cheesecloth.
Step 2: You can apply this juice directly, but to cut through the harsh smell of both, opt for a carrier oil such as coconut, olive, or almond oil, and then apply this mixture deep into the roots.
Step 3: Be gentle while massaging and keep this mixture for around 30 minutes. Do not exceed the time duration as the smell can be contagious resulting in itching in the eyes and irritation.
Step 4: To remove the smell use a good shampoo followed by a good conditioner and follow this process twice a week using onion or garlic as per your choice.
(Image Credits: Pinterest)