Is badger oil effective for a burn that's already 20 days old?
Generally, whether badger oil is effective 20 days after a burn depends on the wound's healing progress. If there are any abnormalities, it is recommended to seek medical attention promptly. The details are as follows:

If, 20 days after the burn, the wound has mostly healed and only minor pigmentation or superficial scarring remains, applying badger oil at this stage can help moisturize the skin and promote metabolism, thereby aiding in fading marks. Badger oil contains natural ingredients and is gentle on the skin, making it suitable for use during this recovery phase.
However, if the wound has not yet healed after 20 days and shows signs of redness, swelling, fluid discharge, increased pain, or infection, using badger oil may delay proper treatment. Unhealed wounds require professional care, such as debridement, disinfection, and medication. Applying badger oil blindly could increase the risk of infection and hinder recovery.
Before using badger oil, ensure you assess the condition of the wound. If the wound has formed a scab and shows no abnormalities, a small amount may be applied. However, if the wound remains open or signs of infection appear, discontinue use immediately and consult a healthcare provider. Keep the wound clean and dry, avoid contact with water, and take appropriate measures to support healing.