Use of horse chestnut/ being underweight can be just as frustrating !?

I was just wonderingif anyone knows about the use of hors chestnut externally. I have been given a cream by a herbalist while taking internally, ginger i read somewhere should not be taken with horse chestnut,i want to clarify this as i really need to take this cream. I am 23 years old and due to a long period of eating disoreder when i was younger i have what are some thread/ varicose veins at back of my legs and as a result i feel totally disgusted with my legs , proabbly more so than people complaining about weight , at least if i was over weight i could change it- but i not sure i CAN reverse something like that and i am only 23! so if anything will work this is it, but i been prescribed other herbs and not sure i can take horse chestnut with them,so if anyone has experienced using horse chestnut in a cream or had problems with thread veins and has had them treated herbally i would very much love ot hear your answers.also ANY HELP at all for people needing to gain!??

Use of horse chestnut/ being underweight can be just as frustrating !?
Imagine if ginger and horse chestnut were going to fix varicose veins. It would be a medical breakthrough. We could give gingerbread men to pregnant women to reverse their veins.