Nano brows, also known as nano needling or nano blading, is a semi-permanent makeup procedure that mimics the appearance of natural hair strokes. It's a technique that requires precision and skill, but like any cosmetic treatment, there's always a risk of it going wrong. If you're dealing with nano brows gone wrong, here are some steps you can take to correct the mistakes:

1. **Seek Professional Help**: If you're not happy with the results of your nano brows, it's essential to consult with a professional. This could be the original technician who performed the procedure, or another experienced professional. They can assess the situation and provide you with the best course of action.

2. **Saline Tattoo Removal**: This procedure uses a saline solution to lighten the pigment in the skin. It's a safe and effective method for removing or correcting semi-permanent makeup, including nano brows. However, it may take several sessions to achieve the desired results.

3. **Laser Tattoo Removal**: For more severe cases, laser tattoo removal may be an option. This method uses laser technology to break down the pigment in the skin. It's important to note that this procedure should be performed by a trained professional and may require multiple sessions.

4. **Wait it Out**: Semi-permanent makeup like nano brows naturally fades over time. If the mistakes are minor, it might be best to wait for the pigment to fade naturally. During this time, you can use makeup to help cover any mistakes.

5. **Corrective Work**: In some cases, additional nano needling sessions can be used to correct mistakes. This could involve adding more strokes to balance the brows, or using a different color to adjust the tone.

Before taking any corrective measures, it's essential to understand the cause of the mistake. Was it a technical error, or is your skin reacting negatively to the pigment? Understanding the root cause will help you prevent similar issues in the future. Remember, your skin is unique, and what works for others may not work for you. Always consult with a professional before making any decisions.