Hi hmeggi,
Same problem happen with me. Somebody suggest me for one home remedies.
Its is little bit difficult but its very helpful.
Chop onion in small pieces so that it can go inside shampoo bottle. Use this one for one week, you will see the change.
I know its difficult because of onion smell, but once your hair dry, smell will go.
Since last 7 months i am doing.
Really its great.