Hi and a very warm welcome to the online community
I'm sorry to hear that your breast is feeling very tender 5 months after completing radiotherapy. Could I suggest that you join and post your question in the very friendly breast cancer group as there you'll find people who can share their experiences with you.
To join just click on the link I've created and then choose 'join this group' on the page that opens. You can then introduce yourself and ask questions after selecting 'start a discussion' and join in with existing conversations by clicking on 'reply'.
When you have a minute it would be really useful if could pop something about your journey so far into your profile as it helps others when answering or looking for someone with a similar diagnosis. It also means that you don't have to keep repeating yourself. To do this click on your username and then select 'Edit Profile'. You can amend it at any time and if you're not sure what to write you can take a look at mine by clicking on my username.
"Never regret a day in your life, good days give you happiness, bad days give you experience"
