Prescription can't be given online as per law...hope you understand...Several ingredients were found to be safe and effective for self-treatment of dandruff and seborrheic dermatitis. Salicylic acid, selenium sulfide, zinc pyrithione and coal tar are effective in treating both conditions while sulfur and ketoconzole are effective in treating dandruff only and hydrocortisone is effective for seborrheic dermatitis.. try to have healthy diet at regular intervals,drink more water,manage stressful situations smoothly if possible avoid them,biotin supplements helps you...you will require topical agents like minoxidil which will maintain hair density and also helps in new hair growth... consult nearest dermatologist they will do the needful