Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns.
As per your complain the symptoms seems to be like Seborrheic Dermatitis
leading to flaking of scalp and dandruff
while bumps can be due to Folliculitis
Both the conditions can continue to worsen and become more severe if not treated..
You should consult a Trichologist and get evaluated and he can do a thorough clinical evaluation as well as microscopic examination of the flakes and confirm the cause..
The swollen lymph nodes
seems to be due to infection..
In case of Seborrheic Dermatitis Trichologist can advise you to wash your hairs with shampoo containing Ketaconazole, salicylic acid
, zinc, selenium and sulfur..
You can also keep scalp clean and wash your hairs every alternate day..
For folliculitis oral as well as topical lotion of antibiotics can be advised to you..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.