Hi there,
I understand your predicament when you have limited access to medical care. To answer your first question, yes continue taking both antibiotics. They are from different groups of antibiotics, and tackles different kinds of infection. The only catch is that doxycycline has been known to reduce the effectiveness of
amoxycillin, but I would not have you stop the doxycycline and expose you to the
malaria risk. Go ahead with the amoxycillin if that is what you have on hand, and make sure to complete the full course. If you find that indeed the amoxycillin doesn't work so well this time (you will be able to tell after 2-3 days), see if you can get antibiotics from another group, like
erythromycin or
cefuroxime.
The answer to the second question is that no, it is not a serious side effect. It is probably just a yeast infection, also called candida, and is a common side effect of any antibiotic, because it kills off the natural bacteria in the vagina. You will need to get some antifungal pessaries like
clotrimazole to insert into your vagina, or if you prefer oral medication for any reason at all, something like
fluconazole will help. Do not worry excessively about this if you can't get medication for this urgently, it is simply a nuisance condition that does not have long term problems.
Hope this helps, and all the best to you.
Regards,
Dr. Teh