Why is my hair falling out at 14?

Without a proper evaluation and diagnosis, I can't say. But normally, suggested treatments for perical pigmentation include topical medications and laser treatments and I do not recommend flutivate cream for pigmentation. However, based on your individual condition, the doctor will recommend the best treatment for you. 

Skin atrophy is the thinning of the skin and it can happen for different reasons like aging, steroid abuse, or some medical conditions. Skin atrophy is the major issue and it is necessary to use gentle lotions and creams to keep your skin moisturized to solve it. Refrain from harsh chemicals and cover your skin from the sun. Eating a balanced meal full of vitamins and minerals can also help your skin. Always bear in mind that the major reason for taking good care of the skin is for the overall well-being of the body.

Bruising and discomfort after sclerotherapy are natural which normally resolves within a few days. But since you said your veins look worse and are more visible after the procedure could indicate a complication. It's good that you have already spoken with your doctor, but still experiencing discomfort or have any concerns, follow up with them promptly. 

In some cases the veins may fade on their own over time, but if the issue is related to the sclerotherapy procedure, additional treatment can be needed. Its best to follow up with your doctor to discuss your options and determine the best treatment.

There are a few products available to help with dandruff. Better to use those that contain selenium sulfide, zinc pyrithione, or ketoconazole. These ingredients are known to help reduce dandruff. Avoid styling products that contain alcohol, as these can dry out and irritate the scalp. Talk to your doctor about any underlying conditions it could be a sign of an infection or other medical condition.