Thanks for the query.
My first suggestion would be to get your ear re-examined by an ENT Surgeon.
Usually after removal of wax no much medication is required. Occasionally some people get complications during or after the wax removal. It may be an infection in the outer canal of the ear, an injury
to the ear drum or an infection in the middle ear. Since you have a discharge from the ear which showed colour changes, it is possible that you are still having an infection in the ear. I could not decipher from your query whether your condition has improved from the initial stage. So, a re-evaluation would be the right decision now. Meanwhile, please continue the antibiotics which you are already on. Also avoid drinking cold
water and keep your ears dry as much as possible.
Hope I have answered your question. Please let me know if I can be of further assistance to you.