Unhealthy vocal developments can occur for diverse reasons. In case of an individual learning to sing it could be due to working the voice improperly or due to throat infections. Normal professionals like teachers who need to use their voice a lot can face different kinds of hoarseness which may not necessarily be related to having had to shout a lot. Allergies are a prime culprit. Yet even with teachers it usually due to overstraining the vocal chords. Vocal training is beneficial for not just singers but also school and college teachers.
A genuinely expert vocal coach of London would be able to teach them breath support using the diaphragm and projection of the voice to avoid screaming which would help strengthen their vocal chords. If your voice is bothering you should not ignore it. Get voice therapy soon enough to assess and treat the problem which could avoid voice surgery. On the other hand, if your dream is to sing and build a robust career in music you should study under the kind of voice coach of UK who will understand the strengths and weaknesses of your voice. This will mean that s/he will give you the kinds of exercises which will help eradicate the weaknesses of your voice while making the most of your strengths.
While coaching is on there should also be a lot of hands on exposure in terms of participation in concerts, musicals and other recitals. Not all vocal techniques are created equal. Based on the human anatomy and physiology of vocal production, choose the one that is a safe and natural way to sing. A good vocal technique should concentrate on training the larynx muscles to do all the vocal cords adjustment. While you are being coached you develop confidence, uniqueness and learn to perform. This helps you to stand out as a real singer. The big tip of the day is that you should not try and sing like someone else; not even the established and popular singers. Building vocal stamina might seem boring at times but that is what will ensure that your voice remains sweet even into old age.