Hi,
Welcome to Health Care Magic, thanks for posting your query . I understand your concern.
Acne could be a real issue for many, and the treatment that you are taking right now is apt. Continue taking doxycycline tablets as per your prescribed dose until your acne reduces to a visible degree.
Along with the antibiotics that you are taking you can consider applying Retino-A 0.025% on the acne only at nights. Avoid junk/ oily food and drink 4-5 litres of water per day.
For the dark acne spots you can try using Kojiglo cream (
kojic acid 2%) at nights after washing your face thoroughly, but i suggest you to not use much chemicals near you eye region as it might affect your vision in the long run.
With time the dark spots will definitely lighten , so do not use any creams too near to the eye.
Hope this helps , and answers your query satisfactorily .
Do write back to us if you need further assistance .
Take care ,
Wishing you good health .
Regards.