Irregular throat pain and severe dandruf

Sorry for the long query.. Having throat pain from very long.. Sometimes it doesn't pain, but some times it is very uneasy in throat.. Always get thick mucus while spitting in the morning and night.. (it feels like I am having cold), snoring problem was also severe, but got reduced a little bit after reducing weight The dandruff is so severe (from past 10yrs),i was told psoriasis and have taken ayurvedic medicine, it reduced significantly but returned back when stopped medicines. I can see lot of flakes if slept on anything, and also itching. Having inflammation on scalp as well (pimples with white pus). I am thinking that this is due to infection in body.. Whom should I consult. As skin doctor can't tell the cause of throat pain and the ent doctor can't tell whether the dandruff is related to throat infection. Kindly suggest.