Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns.
As per your complain
severe pain in throat and red purple veins seems to be due to a few causes like
throat infection caused by either bacteria or virus,
acid reflux,
post nasal drip etc..
I would suggest you to consult an Otolaryngologist and get evaluated and a thorough clinical evaluation and investigations like throat swab culture and pH view of throat can help in diagnosis..
In case of infection antibiotics, anti-inflammatory painkiller like Ibuprofen, warm saline gargles, steam inhalations and gargle with a numbing mouthwash especially before meals can help..
Sucking throat lozenges and chewing Vitamin C pellets can help..
In case of acid reflux antacids,
proton pump inhibitors like Omeprazole, light diet and dietary modification will be advised..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.