Hyper pigmentation

Sir,
I have got severe hyper pigmentation in my face gradually from face till neck for the past 3 years . Being a women I feel depressed on seeing my face . I have done all the tests and no abnormalities have been observed . With recent biopsy , dr indicates that this is of Lichen planeus
Kindly advise medication .
Details are furnished below . Also kindly advise ur mail address for further consultation . Kindly oblige
With regards,
Mrs. Srividhya umashanker
State your Age -Sex -Height-Weight-Job-Location?
Age 36s-female Height 5.5, weight-67 kg, Job- non physical ,in software, Location-Bangalore - India

2) Explain in details the chief complaints?
a. Face, and neck dark brownish
b. Face is dry
c. neck is dark, scaly and no itching.

3) What is the duration of illness?
More than 3 years
4) If you have Thyroid functioning complications, please explain?
No thyroid problem
5) If you have blood sugar, do mention the clinical details?
No blood sugar problem
6) Do you have digestion problem? - no
7) Do you face any problem in bowl movement? Any constipation symptoms?
INo constipation
8) Do you feel thirsty? How many glasses of water you drink every day?
Not that much . However , I drink at least a litre of water everyday.
9) Do you feel good in warm or cold or humid climate? Which climate aggravates your problem?
I Warm and humid climate aggravates problem.
10) Do you have any stress? Explain in details.
stress in official work
11) Do you get normal sound sleep?
Yes
12) Explain in detail about your mood?
I feel happy generally but my dark face makes me very sad and very much worried
13) Any problem with you periods? (For females)
- Are the periods early, regular or late in general? How long do they last?
Yes normal . It usually for 3 days
- Do you suffer from any kind of physical or mental discomfort before, during or after the periods?
Being a woman - Yes on account of this disability - hyper pigmentation
- Is the flow scanty, normal or excessive? - normal
- Is the blood thick bright red or pale watery? - normal
- Do you notice any clots in the flow? No
14) Any past health history for which you would like to share the information?
I was operated for appendicitis about 4 years back
15) List all the medicine used / using for past / present health complaints?
No allopathy medicine is taken except Vitamin-C 500mg for skin color improvement.
16) Do you exercise daily? Or any other physical activity.
Yes walk for 2 km one time daily
17) What is your Cholesterol level?
Normal
18) What do you crave for in food items and what are your aversions?
Veg with less salt and without spicy

19) How is your hunger: Less, Normal or Excessive?
Normal
20) Is your sweat normal or less or more? Where does it sweat more: Head, Trunk or Limbs?
Very less sweating at the affected areas
21) How much is your present blood pressure?
Normal
22) Please give details about your food intake (breakfast-lunch-dinner)?
Breakfast-idli, and , chapati-, Pongal -- 2/3 stomach full
Lunch - chapati, rice, dal, vegetable, vegetable but with less salt and no tamarind -stomach full
Dinner - chapati, rice, dal, vegetable, vegetable ..--stomach full
- no alcohol