If buying a necklace on Xiaohongshu causes allergies, you can take the following measures to protect your rights:
1. Contact the merchant: First, you can contact the merchant and inform them that the necklace causes allergies allergies and ask them to provide relevant credentials and explanations.
2. Collect evidence: If the merchant is unwilling to provide relevant evidence or explanation, you can collect evidence by yourself, such as taking photos or videos of the necklace, for subsequent use in rights protection.
3. Contact the Xiaohongshu platform: You can contact the Xiaohongshu platform and ask them to assist in handling this matter. When contacting the Xiaohongshu platform, you can provide relevant evidence and information, such as merchant name, proof of purchase, allergies, etc.
4. Seek legal help: If the merchant or the Xiaohongshu platform is unwilling to provide a satisfactory solution, you can seek legal help and protect your rights and interests through legal channels.
During the rights protection process, you need to provide as detailed evidence and information as possible to better safeguard your rights and interests. At the same time, you can also consult relevant legal professionals to better handle this matter.