Surgery is an option if this is genetic hair loss but no surgeon would do the procedure until you’ve pretreated for many months with minoxidil (Rogaine). It’s also important to do the above workup and consider a biopsy if there’s any concern for an inflammatory hair loss that would need to be treated differently. Hair breakage and tension can also cause hair loss so be careful about heat, braiding, or chemical relaxers. It sounds like you should make an appointment with a board certified dermatologist for workup and treatment.
Bleach baths are an important component of this twice a week 1/2 cup of household bleach in a full tub of water. It sounds irritating but it's like a swimming pool and diluted enough that it shouldn't cause harm even with children with eczema. It's actually a common recommendation for kids with eczema to reduce their risk of skin infection. Ensure you are washing your towels in hot water to kill bacteria that could grow on them and consider using paper towel in the bathroom rather than hand towels. Staph bacteria can easily spread between close household contacts so make sure everyone is on the same page so it doesn't continue to spread.
Painful veins can be treated by in office treatments through insurance such as sclerotherapy which destroys the abnormal veins or other surgical procedures. Exercise also helps the muscles of the legs to help improve blood flow in addition to its heart health benefits. In the evening keeps your legs elevated above your heart. If this is not treated it is likely to worsen over time and put you at risk for open sores or infection.
With your hyperhidrosis (excessive sweating) if you are using irritating antiperspirants sometimes you'll want to get that under control in other ways. It's possible you could have a bacterial infection caused by staph which happens when the skin gets irritated. A board certified dermatologist can help you manage both conditions.