Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern..
As per your complain it seems that you have got a cold with
sinus infection and blood in ear can be due to
ear infection secondary to sinus infection and cold as there is a direct communication between the ear and throat via Eustachian tube..
I would suggest you to consult an Otolaryngologist and get evaluated and he can advise you a course of antibiotics like
Augmentin or continue
Azithromycin, anti-inflammatory painkiller like Ibuprofen, decongestants like Pseudoephadrine, mucolytics like Ambroxol, saline
nasal irrigation, steam inhalation, antibiotic and steroid ear drops along with decogestant nasal sprays..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora..