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I need to know whether these rashes have symptoms like itching or burning sensation on exposure to sunlight.
These rashes could be rosacea or seborrheic dermatitis
if not pimples.Both can be treated but may take little longer time .
As far as hair loss is concerned ,it has various reasons at this age like iron deficiency
solution is good for hair loss,but then you need to consult a dermatologist
for all your skin problem ,as doctor can analyse and diagnose the cause of your problem.Drink plenty of water , sleep well for 7 hrs at night ,take sprouts,good protein diet & green leafy vegetables which helps reduce hair loss.