hello and welcome to HCM,
You are an teaching assistant and this puts your voice at a strain. You might have noticed that when you take a break from work or speach your voice improves only to worsen when you strain. This is common amongst teachers but don't worry because it indicates that you are working hard in your profession. On our side lets help you out however we can:
1. Consult and ENT again to perform a video laryngoscopic examination of the vocal cords and get a colour print of the same, this will be our baseline for treatment monitoring and outcome measurement.
2. Consult and speach therapist who will first perform a complete speach and language evaluation and will also give you proper advice on how not to strain your voice and also about something called the VOCAL HYGIENE
3. Avoid speaking for long stretches of time and take frequent breaks, am sure even while asking class or teaching you can take frequent breaks by improvising
4. Do not frequently try to clear your throat, it will only worsen the problem and you may end up with a nodule which has to be treated surgically sometimes.
5. Avoid drinking anything cold
especially in the night
6. Consult with your ENT and start an anti reflux treatment
remember that for a teacher, the vocal cords are like the muscles for a sportsman, the more you take care of them, the better will be your life
over time when you are experienced you will definetely feel better
Dr Sriram Nathan