Ingrown feather?

[Funnwonderland]

I'm new to this and my polish had given me done worries over the past 4 weeks. This morning I found this scab/bump on her head. Is it an ingrown feather? If not any advice on what it is and if it is any advice on what to do?
TIA!
P.S. box cleaning day is tomorrow. Sorry it looks so bad today

 

[peeper89]

other chicks r pulling out his head feathers he bein pick on!
put bluing pick antiseptic on him head

if he trouble u for 4 weeks then find somebody to take him