I'm 28yrs n have female pattern hair loss. I'm using minoxidil 5% for the past 3years with no difference. It seems to b getting worse. Wt am I to do?

Needs evaluation. There are many possible reason for hair loss. More than one cause can happen at one time, for example a woman may have hormonal abnormalities that may lead to an androgenetic hair loss but she may also have thyroid dysfunction which contributes to shedding, etc. You need a thorough physical, some blood work, a hair pull to see distribution of hair growth and possibly a scalp biopsy.